46:"/_next/static/chunks/2g8w-80ml0qgh.js" 47:"/_next/static/chunks/0iv56yrji_20j.js" 48:"/_next/static/chunks/07n38_x1c5ol5.js" 49:"/_next/static/chunks/3i6o_ezb7k38p.js" 4a:"/_next/static/chunks/2pzht2w_wvlxv.js" 4b:"/_next/static/chunks/09f5cfkroz048.js" 4c:"/_next/static/chunks/0wa9m1-tphf9u.js" 4d:"/_next/static/chunks/1jl6tco-uuy-j.js" 4e:"/_next/static/chunks/0lc44eilyyvky.js" 4f:"/_next/static/chunks/44eddfb82mqw7.js" 50:"/_next/static/chunks/0rh88mo92_eun.js" 51:"/_next/static/chunks/19bc9syhv3w28.js" 52:"/_next/static/chunks/3inwsphehwqfi.js" 53:"/_next/static/chunks/1nyz-fz1mk3y6.js" 54:"/_next/static/chunks/2ozcrjb_hh74t.js" 55:"/_next/static/chunks/1kjhudvr8aesf.js" 56:"/_next/static/chunks/1ot1rbfa0d_n4.js" 57:"/_next/static/chunks/20k3408cq3fwt.js" 58:"/_next/static/chunks/1_lo_qve3gu86.js" 59:"/_next/static/chunks/3di53f0fz7pw_.js" 5a:"/_next/static/chunks/3m1xjj5kw5fie.js" 5b:"/_next/static/chunks/0oag6lffx7d01.js" 5c:"/_next/static/chunks/082jo-0ajazgr.js" 5d:"/_next/static/chunks/0-a64pg0hn7g7.js" 5e:"/_next/static/chunks/09nq57stwzkgf.js" 5f:"/_next/static/chunks/253gnmj0-cj17.js" 60:"/_next/static/chunks/3k2gyg36fnag_.js" 61:"/_next/static/chunks/0so1i35v7xcta.js" 62:"/_next/static/chunks/0i3-eynrkvqi7.js" 63:"/_next/static/chunks/0o80ztgn9c32o.js" 64:"/_next/static/chunks/2ef57x_ulp7g8.js" 65:"/_next/static/chunks/40mq7ggq-ozo4.js" 66:"/_next/static/chunks/1tn-0fivsxsv1.js" 67:"/_next/static/chunks/0hlb44ca7-4a2.js" 68:"/_next/static/chunks/3w3w0o8onfo6c.js" 69:"/_next/static/chunks/1k6nz21j59212.js" 6a:"/_next/static/chunks/0vq-rot4_1_4v.js" 6b:"/_next/static/chunks/2k8pepwc4pxns.js" 6c:"/_next/static/chunks/3tkuay-4u7wpt.js" 6d:"/_next/static/chunks/18ggtgz2yf759.js" 6e:"/_next/static/chunks/249z4re91ru3g.js" 6f:"/_next/static/chunks/20329i6m_04t6.js" 70:I[593304,["$2d","$2e","$2f","$30","$31","$32","$46","$47","$48","$49","$4a","$4b","$4c","$4d","$4e","$4f","$50","$51","$52","$53","$54","$55","$56","$57","$58","$59","$5a","$5b","$5c","$5d","$5e","$5f","$60","$61","$62","$63","$64","$65","$66","$67","$68","$69","$6a","$6b","$6c","$6d","$6e","$6f"],"OwnedHydration"] 71:T62e,In software engineering, a **concern** is any piece of interest or focus in a program. More precisely, it is a distinct aspect of functionality that can be identified, discussed, and potentially isolated from other aspects. The term was popularized by Edsger W. Dijkstra in his seminal 1974 paper "On the role of scientific thought," where he introduced the concept of **separation of concerns** as a fundamental principle of program organization. **Dijkstra's Original Insight:** > *"Let me try to explain to you, what to my taste is characteristic for all intelligent thinking. It is, that one is willing to study in depth an aspect of one's subject matter in isolation for the sake of its own consistency, all the time knowing that one is occupying oneself only with one of the aspects. We know that a program must be correct and we can study it from that viewpoint only; we also know that it should be efficient and we can study its efficiency on another day, so to speak. In another mood we may ask ourselves whether, and if so: why, the program is desirable. But nothing is gained—on the contrary!—by tackling these various aspects simultaneously. It is what I sometimes have called 'the separation of concerns', which, even if not perfectly possible, is yet the only available technique for effective ordering of one's thoughts."* This insight remains as powerful today as when it was written. A concern represents a **coherent area of interest** that can be reasoned about independently—even though in the final system, all concerns must work together harmoniously.72:T721,// A seemingly simple function that actually addresses many concerns async function createOrder(request: CreateOrderRequest): Promise { // CONCERN: Input Validation // Ensuring data meets structural and semantic requirements validateOrderRequest(request); // CONCERN: Authentication // Verifying the identity of the requester const user = await authenticateRequest(request.token); // CONCERN: Authorization // Determining if the authenticated user can perform this action await authorizeOrderCreation(user, request); // CONCERN: Business Logic / Domain Rules // Applying domain-specific calculations and validations const orderTotal = calculateOrderTotal(request.items); const discounts = applyDiscountRules(orderTotal, user); const finalTotal = orderTotal - discounts; // CONCERN: Inventory Management // Checking and reserving stock await reserveInventory(request.items); // CONCERN: Persistence // Storing data durably const order = await orderRepository.save({ userId: user.id, items: request.items, total: finalTotal, status: 'pending' }); // CONCERN: External Integration // Communicating with payment provider await paymentService.authorize(order.id, finalTotal); // CONCERN: Event Publishing / Notification // Informing other parts of the system await eventBus.publish('order.created', { orderId: order.id }); // CONCERN: Logging / Observability // Recording what happened for debugging and analytics logger.info('Order created', { orderId: order.id, userId: user.id }); // CONCERN: Response Formatting / Presentation // Preparing the output for the caller return formatOrderResponse(order); }73:T565,// SYSTEM LEVEL: Entire products/platforms // - OrderingSystem // - InventorySystem // - PaymentGateway // SUBSYSTEM LEVEL: Bounded contexts within a product namespace OrderingContext { // Everything related to orders class OrderService { /* ... */ } class OrderRepository { /* ... */ } class OrderEvents { /* ... */ } } namespace PaymentContext { // Everything related to payments class PaymentService { /* ... */ } class PaymentRepository { /* ... */ } class PaymentEvents { /* ... */ } } // COMPONENT LEVEL: Services within a bounded context class OrderService { constructor( private validator: OrderValidator, // Validation concern private calculator: PriceCalculator, // Calculation concern private repository: OrderRepository, // Persistence concern private events: OrderEventPublisher // Event concern ) {} } // ASPECT LEVEL: Cross-cutting concerns // Applied via decorators/middleware @Transactional() @Logged() @Cached({ ttl: 300 }) async getOrderById(id: string): Promise { ... } // METHOD LEVEL: Single operations class PriceCalculator { calculateBasePrice(items: Item[]): Money { /* focused logic */ } applyDiscounts(price: Money, discounts: Discount[]): Money { /* focused logic */ } applyTax(price: Money, region: Region): Money { /* focused logic */ } }74:T40d,// FP: Functions represent concerns as pure transformations // Each function handles one concern // Validation concern (pure) const validateOrder = (order: Order): Either => { const errors = [ validateItems(order.items), validateCustomer(order.customer), validateShipping(order.shipping) ].filter(isError); return errors.length > 0 ? left(errors) : right(order); }; // Calculation concern (pure) const calculateTotal = (order: Order): OrderWithTotal => ({ ...order, total: order.items.reduce((sum, item) => sum + item.price * item.quantity, 0) }); // Discount concern (pure) const applyDiscounts = (order: OrderWithTotal): OrderWithTotal => ({ ...order, total: order.total * (1 - getDiscountRate(order)) }); // Composition: pipeline of concerns const processOrder = pipe( validateOrder, map(calculateTotal), map(applyDiscounts), chain(persistOrder), // Side effect isolated chain(sendNotification) // Side effect isolated );75:T450,// AOP: Cross-cutting concerns declared separately from business logic // Business logic - clean and focused class OrderService { async createOrder(order: Order): Promise { const validated = this.validator.validate(order); const priced = this.calculator.calculateTotal(validated); return this.repository.save(priced); } } // Cross-cutting concerns declared as aspects @Aspect() class LoggingAspect { @Before('execution(* OrderService.*(..))') logEntry(jp: JoinPoint) { console.log(`Entering ${jp.methodName} with args: ${jp.args}`); } @After('execution(* OrderService.*(..))') logExit(jp: JoinPoint) { console.log(`Exiting ${jp.methodName}`); } } @Aspect() class TransactionAspect { @Around('execution(* *Repository.save(..))') wrapInTransaction(jp: JoinPoint) { const tx = this.transactionManager.begin(); try { const result = jp.proceed(); tx.commit(); return result; } catch (e) { tx.rollback(); throw e; } } }76:T677,async function handleUserRegistration(req: Request, res: Response) { // What concerns can you identify here? const startTime = Date.now(); const { email, password, name } = req.body; if (!email || !email.includes('@')) { return res.status(400).json({ error: 'Invalid email' }); } if (!password || password.length < 8) { return res.status(400).json({ error: 'Password too short' }); } try { const existing = await db.users.findOne({ email }); if (existing) { return res.status(409).json({ error: 'Email already registered' }); } const hashedPassword = await bcrypt.hash(password, 10); const user = await db.users.insert({ email, password: hashedPassword, name, createdAt: new Date() }); const token = jwt.sign({ userId: user.id }, SECRET, { expiresIn: '24h' }); await sendEmail({ to: email, subject: 'Welcome!', body: `Welcome to our platform, ${name}!` }); await analytics.track('user.registered', { userId: user.id }); console.log(`User ${email} registered in ${Date.now() - startTime}ms`); res.cookie('authToken', token, { httpOnly: true }); res.status(201).json({ user: { id: user.id, email, name } }); } catch (error) { console.error('Registration failed:', error); await alerting.notify('registration-failure', error); res.status(500).json({ error: 'Registration failed' }); } }45:["$","$L70",null,{"owner":"anonymous","state":{"mutations":[],"queries":[{"dehydratedAt":1792196631658,"state":{"data":{"json":{"archivedAt":null,"id":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","slug":"lld-system-design","title":"Low-Level System Design","description":"Master low-level design and object-oriented design across 37 chapters and 1003+ pages.","image":null,"color":"#0EA5E9","keyTopics":["Object-oriented design","SOLID principles","Design patterns","API and persistence design","Concurrency fundamentals","Clean architecture","Testing and maintainability","LLD interview preparation"],"estimatedHours":167,"problemCount":0,"visualizerCount":0,"quizCount":0,"learningCount":1003,"difficulty":"INTERMEDIATE","idealFor":["Software developers","Backend and full-stack engineers","Interview candidates","Engineers improving design skills"],"prerequisites":["Basic programming and OOP concepts","Comfort with classes and interfaces","Familiarity with one OOP language"],"skillsGained":["Domain modeling","Class and API design","Applying SOLID effectively","Pattern selection and trade-offs","Concurrency-safe design","Maintainable code architecture"],"outcomes":["Design extensible object models","Build maintainable service components","Choose appropriate design patterns","Improve code quality and testability","Perform strongly in LLD interviews"],"overview":"This LLD learning path develops practical software design skills from object modeling to production-ready architecture decisions.\n\n**What you'll learn:**\n• OOP and UML fundamentals\n• SOLID and essential design principles\n• Creational, structural, and behavioral patterns\n• API, persistence, and caching design\n• Concurrency and resource management\n• End-to-end LLD case studies","createdAt":"2026-10-15T17:47:45.111Z","updatedAt":"2026-10-15T17:54:18.881Z","modules":[{"id":"seed_da74e17c73d4bdef48e2ebe0d48b75eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"What Is Lld","order":1,"contentType":"LEARNING","contentSlug":"what-is-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_778934f0d6849d48df17c1ad6c07e72b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld Vs Hld","order":2,"contentType":"LEARNING","contentSlug":"lld-vs-hld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_95e3d95deccee4b3e3b64cac2d19f2d5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Why Lld Matters","order":3,"contentType":"LEARNING","contentSlug":"why-lld-matters","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_094de77501d4b53e2f6f06692188724f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld Mindset Thinking In Components","order":4,"contentType":"LEARNING","contentSlug":"lld-mindset-thinking-in-components","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_189f4cfae259fa06e7ded9a2582c6d2c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld In Interviews Vs Real World","order":5,"contentType":"LEARNING","contentSlug":"lld-in-interviews-vs-real-world","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_6c846f026ab6f60428f58578dd8553a8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Prerequisites And Learning Path","order":6,"contentType":"LEARNING","contentSlug":"lld-prerequisites-and-learning-path","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_5f10ed873dedc742abcfabbe08d367b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"From Procedural To Oo","order":1,"contentType":"LEARNING","contentSlug":"from-procedural-to-oo","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_46639e27cdc7109390b7ce754380d88b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Identifying Objects In Problem Statements","order":2,"contentType":"LEARNING","contentSlug":"identifying-objects-in-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_9f5576f9b0d9e2b47c9b5dfc34604ecf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Entities Attributes Behaviors","order":3,"contentType":"LEARNING","contentSlug":"entities-attributes-behaviors","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_eb81cacfbd69c4cbc7654161a604b12e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Relationships Between Objects","order":4,"contentType":"LEARNING","contentSlug":"relationships-between-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_636bd1ad92e89db9396cd1b368eb868f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"State And Behavior Modeling","order":5,"contentType":"LEARNING","contentSlug":"state-and-behavior-modeling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_36d3d57efb9dffdd64a847a234304e2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Real World To Code Translation","order":6,"contentType":"LEARNING","contentSlug":"real-world-to-code-translation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_dc7beec34ee4458aee0b87574abf46d1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Why We Need Design Diagrams","order":1,"contentType":"LEARNING","contentSlug":"why-we-need-design-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_a1542f810360eee6eefbd9bffc15b3ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Uml Overview","order":2,"contentType":"LEARNING","contentSlug":"uml-overview","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_283778a4a6c84cfa10aca570c814a281","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Class Diagrams","order":3,"contentType":"LEARNING","contentSlug":"class-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_9c69001e4a0889eaee6f2ba756e288de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Relationships In Diagrams","order":4,"contentType":"LEARNING","contentSlug":"uml-relationships","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_95e6369d513b75eab5ea405d4fdb618f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Sequence Diagrams Behavior Over Time","order":5,"contentType":"LEARNING","contentSlug":"sequence-diagrams-behavior-over-time","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_0ed28be5ecf1baf9f05d40bac9932ca7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Use Case Diagrams","order":6,"contentType":"LEARNING","contentSlug":"use-case-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_bf1cae02bf90d7885655b40d7756bb7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Activity State Diagrams","order":7,"contentType":"LEARNING","contentSlug":"activity-state-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_27be8950e0a7ca2b55e789d017759008","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"When To Use Which Diagram","order":8,"contentType":"LEARNING","contentSlug":"when-to-use-which-diagram","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_166823daca2d18635c97caefb96c2e41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"What Is Class What Is Object","order":1,"contentType":"LEARNING","contentSlug":"what-is-class-what-is-object","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_322634ed40774e4a77015e0433179d06","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Attributes And Methods","order":2,"contentType":"LEARNING","contentSlug":"attributes-and-methods","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_f6705dbb6228a71e08a4ad4187941ec9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Constructors And Object Lifecycle","order":3,"contentType":"LEARNING","contentSlug":"constructors-and-object-lifecycle","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z"},{"id":"seed_6b800f95d9a444455534fee651269739","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Access Modifiers Visibility","order":4,"contentType":"LEARNING","contentSlug":"access-modifiers-visibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_dcaea37542bb34f9c16f4c110d57ffb4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Static Vs Instance Members","order":5,"contentType":"LEARNING","contentSlug":"static-vs-instance-members","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_a3e5332d704341d5c3a9fb945a5378f6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Object Identity Equality Hashing","order":6,"contentType":"LEARNING","contentSlug":"object-identity-equality-hashing","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_474d8467f9840e66de7ddcae3dad112d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Designing Clean Classes","order":7,"contentType":"LEARNING","contentSlug":"designing-clean-classes","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_bb27ea6e1969ed891d9e206258f88ad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"What Is Encapsulation","order":1,"contentType":"LEARNING","contentSlug":"what-is-encapsulation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_9b27cac6c031352578845b4bc3bbef84","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Data Hiding Principles","order":2,"contentType":"LEARNING","contentSlug":"data-hiding-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_6a3cd03202849aa2f73df3c833338375","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Getters And Setters When And Why","order":3,"contentType":"LEARNING","contentSlug":"getters-and-setters-when-and-why","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_6c546cfca78f519dd607364bc8c14bf0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Immutable Objects","order":4,"contentType":"LEARNING","contentSlug":"immutable-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_34de1762027e2db0acb12ca78bb5c2cc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Defensive Copying","order":5,"contentType":"LEARNING","contentSlug":"defensive-copying","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_60b4909c83f766a2dbf0c4dd01ad31bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Encapsulation In Practice","order":6,"contentType":"LEARNING","contentSlug":"encapsulation-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_47dc919f28df10d59a5d56f472412545","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"What Is Inheritance","order":1,"contentType":"LEARNING","contentSlug":"what-is-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_79f6c0639dbfeb8400a38ce23f02a799","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Is A Relationship","order":2,"contentType":"LEARNING","contentSlug":"is-a-relationship","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_a2d0a67913ddadcd3ad88d6d6c36eab5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Method Overriding","order":3,"contentType":"LEARNING","contentSlug":"method-overriding","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_d85594dc748eccdbea4005e2f40df194","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Super Keyword Chain Calls","order":4,"contentType":"LEARNING","contentSlug":"super-keyword-chain-calls","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_97468a185509f26eb4d956c2798f1bf1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Inheritance Hierarchies Design","order":5,"contentType":"LEARNING","contentSlug":"inheritance-hierarchies-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_9bdca43d2315b271e35a2ef8e395b55d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"When Inheritance Goes Wrong","order":6,"contentType":"LEARNING","contentSlug":"when-inheritance-goes-wrong","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_b7cd866ae2fc8c3008e94a6da4e735c5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Abstract Classes","order":7,"contentType":"LEARNING","contentSlug":"abstract-classes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_4e626fb84a410929e4cb3ed05baaad0a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"What Is Polymorphism","order":1,"contentType":"LEARNING","contentSlug":"what-is-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_dedd248652f91e3dcb7f27d95d7a5e7f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Compile Time Vs Runtime Polymorphism","order":2,"contentType":"LEARNING","contentSlug":"compile-time-vs-runtime-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_a3ed79c43d060af220f5074a8150a9e1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overloading","order":3,"contentType":"LEARNING","contentSlug":"method-overloading","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_da3d93f57df0f222a390ae11845b960f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overriding Revisited","order":4,"contentType":"LEARNING","contentSlug":"method-overriding-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_71f77ac4a1f0c804e293fb081918cf02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Through Interfaces","order":5,"contentType":"LEARNING","contentSlug":"polymorphism-through-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_168e03dd8b559d363713e2851dd8c0eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Programming To Interfaces","order":6,"contentType":"LEARNING","contentSlug":"programming-to-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_07ce71b316ac60e58a6c1e713d498fc9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Patterns Practice","order":7,"contentType":"LEARNING","contentSlug":"polymorphism-patterns-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z"},{"id":"seed_ab5f84de0eac1b05fd85268689f30bcc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"What Is Abstraction","order":1,"contentType":"LEARNING","contentSlug":"what-is-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.191Z"},{"id":"seed_5fb5b497f96b7fbc6bb53b64300a0ea6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstract Classes Vs Interfaces","order":2,"contentType":"LEARNING","contentSlug":"abstract-classes-vs-interfaces","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.191Z"},{"id":"seed_9262b09d5fb81fcb4b3f9fb7553ebfd1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Designing For Abstraction","order":3,"contentType":"LEARNING","contentSlug":"designing-for-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_49c0f381a40c7f1881a5c8eaefe09fe1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstraction Levels In System Design","order":4,"contentType":"LEARNING","contentSlug":"abstraction-levels-in-system-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_ca93cf0151c8626319950a591901b385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"The Cost Of Wrong Abstractions","order":5,"contentType":"LEARNING","contentSlug":"cost-of-wrong-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_b06442dfc12620e36515fae550b9e224","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Refactoring Toward Better Abstractions","order":6,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_2a008b9deb6fece573c136f5bf4bc3f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Revisiting Inheritance Problems","order":1,"contentType":"LEARNING","contentSlug":"revisiting-inheritance-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_a4250aceb61207a618622e21034646ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"What Is Composition","order":2,"contentType":"LEARNING","contentSlug":"what-is-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_78c3a03818aca688523d67eda9903eee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Has A Vs Is A Relationships","order":3,"contentType":"LEARNING","contentSlug":"has-a-vs-is-a-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_eff66edfca8ce63a1493cbe8b5ecdfe4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Favor Composition Over Inheritance","order":4,"contentType":"LEARNING","contentSlug":"favor-composition-over-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_e4e090e2eadc2591c0fbed46b19d00de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Delegation Pattern","order":5,"contentType":"LEARNING","contentSlug":"delegation-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_9b2362b64a55d7fae18d22fe9ad7b405","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"When To Use Inheritance Vs Composition","order":6,"contentType":"LEARNING","contentSlug":"when-to-use-inheritance-vs-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_157e6272dfce32e59c5c821cdb1412f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Refactoring From Inheritance To Composition","order":7,"contentType":"LEARNING","contentSlug":"refactoring-from-inheritance-to-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_642acb350127ba73e8e2b2c93d70d8d6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Is Srp","order":1,"contentType":"LEARNING","contentSlug":"what-is-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_da8bfe459585ccdf2374cb7147c5c1b8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Defining Responsibility","order":2,"contentType":"LEARNING","contentSlug":"defining-responsibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_9d0b3831054181d4a0c5f6f87f1bc2d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Identifying Srp Violations","order":3,"contentType":"LEARNING","contentSlug":"identifying-srp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_a9ef89f46494ff96a73afe97953cae93","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Refactoring For Srp","order":4,"contentType":"LEARNING","contentSlug":"refactoring-for-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_c7bedc6b619c7ee1c77f17f8e8358229","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Srp At Different Levels","order":5,"contentType":"LEARNING","contentSlug":"srp-at-different-levels","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_95bfe849f9ddcc6c0076426076969a2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Common Srp Misconceptions","order":6,"contentType":"LEARNING","contentSlug":"common-srp-misconceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_9415ae0a8779278d688db261c1c4109a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"What Is Ocp","order":1,"contentType":"LEARNING","contentSlug":"what-is-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_a4b65bfd658b5c0a8f6f383f078a35c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Open For Extension Closed For Modification","order":2,"contentType":"LEARNING","contentSlug":"open-for-extension-closed-for-modification","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_6dfa6d220a95a3b79a8e085ba1cf24b2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Achieving Ocp Through Abstraction","order":3,"contentType":"LEARNING","contentSlug":"achieving-ocp-through-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z"},{"id":"seed_5e0af780582da8fb6ed30d16690c6d99","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Strategy Pattern And Ocp","order":4,"contentType":"LEARNING","contentSlug":"strategy-pattern-and-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_3309e375d5681e638818d7c5f6231fed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Ocp Violations And Fixes","order":5,"contentType":"LEARNING","contentSlug":"ocp-violations-and-fixes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_e7c86d7eb27eb5bfd23eb4eddfa8683e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Balancing Ocp With Pragmatism","order":6,"contentType":"LEARNING","contentSlug":"balancing-ocp-with-pragmatism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_149fbd04950a5006abe8ac5bfeed2fbf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"What Is Lsp","order":1,"contentType":"LEARNING","contentSlug":"what-is-lsp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_2c8136281afb042aff35d7238abf35ff","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Behavioral Subtyping","order":2,"contentType":"LEARNING","contentSlug":"behavioral-subtyping","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_12a824f2010a2a39bea1f374b86f4de7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"The Rectangle Square Problem","order":3,"contentType":"LEARNING","contentSlug":"rectangle-square-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_9c00729cf37512df24e500dbb9d6663d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Preconditions And Postconditions","order":4,"contentType":"LEARNING","contentSlug":"preconditions-and-postconditions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_5ecf1145636cf4fbb2c6ae6bebfd2878","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Invariants In Inheritance","order":5,"contentType":"LEARNING","contentSlug":"invariants-in-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_6b3aebf3a5f882aa99b028482211c61b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Detecting And Fixing Lsp Violations","order":6,"contentType":"LEARNING","contentSlug":"detecting-fixing-lsp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_2fdc2944580b8c7d569cc44342d8470c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"What Is Isp","order":1,"contentType":"LEARNING","contentSlug":"what-is-isp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_5ce00075edb0ab3defffddf46d6b83d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Fat Interfaces Problem","order":2,"contentType":"LEARNING","contentSlug":"fat-interfaces-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_4e9482fc4232955821e2ffebbf8fc652","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Role Based Interface Design","order":3,"contentType":"LEARNING","contentSlug":"role-based-interface-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_6a26e140e0dac95832618bc3f197b70d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Splitting Interfaces","order":4,"contentType":"LEARNING","contentSlug":"splitting-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_0a8f7dd84dda2f1f32ddab2ab64e8f2e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Isp And Dependency Management","order":5,"contentType":"LEARNING","contentSlug":"isp-and-dependency-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_49a97270cce660bfa68f89286e3dd5c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Isp In Practice","order":6,"contentType":"LEARNING","contentSlug":"isp-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_1791bf72fa3546f779c23c8b748a2a5b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"What Is Dip","order":1,"contentType":"LEARNING","contentSlug":"what-is-dip","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_83a41e4dbe3bbc0a7484e67d8fe7d562","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"High Level Vs Low Level Modules","order":2,"contentType":"LEARNING","contentSlug":"high-level-vs-low-level-modules","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_addfd929a8fe03e0f40a6413d91f14d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Depending On Abstractions","order":3,"contentType":"LEARNING","contentSlug":"depending-on-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_4f2678d8fb5cdba2b0bf1d17e8b49216","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dependency Injection Fundamentals","order":4,"contentType":"LEARNING","contentSlug":"dependency-injection-fundamentals","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_1ec0a952980acc719a9d85ab4798d269","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Inversion Of Control Containers","order":5,"contentType":"LEARNING","contentSlug":"ioc-containers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_0e3cb60181dfd928c3ad79f460f06aa9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dip And Testability","order":6,"contentType":"LEARNING","contentSlug":"dip-and-testability","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_fc6a2358552f049549aef09b51569132","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Dry Dont Repeat Yourself","order":1,"contentType":"LEARNING","contentSlug":"dry-dont-repeat-yourself","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_0fb562d83598a8ccf83a92665e3ce628","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Kiss Keep It Simple Stupid","order":2,"contentType":"LEARNING","contentSlug":"kiss-keep-it-simple-stupid","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_7179a314876d1b8bdc6d2a8bc3a8b4fc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Yagni You Arent Gonna Need It","order":3,"contentType":"LEARNING","contentSlug":"yagni-you-arent-gonna-need-it","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z"},{"id":"seed_61e01fef0c5b40af0f16e4759311708f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Law Of Demeter","order":4,"contentType":"LEARNING","contentSlug":"law-of-demeter","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_49e45ac569851fb42757e87f165a6e0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Principle Of Least Astonishment","order":5,"contentType":"LEARNING","contentSlug":"principle-of-least-astonishment","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_4a6d82ed9d562c676090d9d490367c24","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Tell Dont Ask","order":6,"contentType":"LEARNING","contentSlug":"tell-dont-ask","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_76a369e882aff43b6ee5286a37fe7c7e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Separation Of Concerns","order":7,"contentType":"LEARNING","contentSlug":"separation-of-concerns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_631c145a428b60d482acab7a6b0428ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Cohesion And Coupling","order":8,"contentType":"LEARNING","contentSlug":"cohesion-and-coupling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_4b06b453f50a1fc71e389588b1305e52","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"What Are Design Patterns","order":1,"contentType":"LEARNING","contentSlug":"what-are-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_67b6c8f2ab71b1e3120bfa635ffd01bf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"History And Origins Gang Of Four","order":2,"contentType":"LEARNING","contentSlug":"history-and-origins","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_3bca43a94769033672a65403ad0fafa6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Categories","order":3,"contentType":"LEARNING","contentSlug":"pattern-categories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_cd7b5b3149710a382b2113e8e30a906b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"When To Use Patterns","order":4,"contentType":"LEARNING","contentSlug":"when-to-use-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_8625d8f0e7e688a575e0ab49b100d4b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Anti Patterns And Pattern Abuse","order":5,"contentType":"LEARNING","contentSlug":"anti-patterns-and-pattern-abuse","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_465d789c1fd1b3e7766da17d8ae20d38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Selection Framework","order":6,"contentType":"LEARNING","contentSlug":"pattern-selection-framework","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_31521a6ae118679015299be83d3f305f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Factory Method Pattern","order":1,"contentType":"LEARNING","contentSlug":"factory-method","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_37c63790d3dcf4acbbf94624f01f1769","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Abstract Factory Pattern","order":2,"contentType":"LEARNING","contentSlug":"abstract-factory-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_2584dcd2d5c64dbc9b90c3f0febd2438","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Builder Pattern","order":3,"contentType":"LEARNING","contentSlug":"builder-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_d67bdb86430e087e0fba938024585543","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Prototype Pattern","order":4,"contentType":"LEARNING","contentSlug":"prototype-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_fcbc07e84e14f4b9ed6263b23222c5e0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Singleton Pattern","order":5,"contentType":"LEARNING","contentSlug":"singleton-pattern","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_c87eef2744d8a3b1951da6085714e871","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Object Pool Pattern","order":6,"contentType":"LEARNING","contentSlug":"object-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_c9cd7c486f9a697a5ec9f274ee3829bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Choosing The Right Creational Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-the-right-creational-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_fc2ea3142f1aa3442a0fe3473b57d54c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Adapter Pattern","order":1,"contentType":"LEARNING","contentSlug":"adapter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_a94f2581c470338713bb59bfb1d73ee5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Bridge Pattern","order":2,"contentType":"LEARNING","contentSlug":"bridge-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_ee8cab08395ba4f631c403c8c7e1fe66","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Composite Pattern","order":3,"contentType":"LEARNING","contentSlug":"composite-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_2083bb0709af82face089b7a29c89c31","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Decorator Pattern","order":4,"contentType":"LEARNING","contentSlug":"decorator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z"},{"id":"seed_ecfa3243624bcfe46a56d43f425c94dc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Facade Pattern","order":5,"contentType":"LEARNING","contentSlug":"facade-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_c6f8d1fdcf8e6e9875be363a9ea388d4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Flyweight Pattern","order":6,"contentType":"LEARNING","contentSlug":"flyweight-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_f9a059902a7c8164f5094b68a19b7774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Proxy Pattern","order":7,"contentType":"LEARNING","contentSlug":"proxy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_b301d5919f0a5067a0776f4f94d1874d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Choosing Structural Pattern","order":8,"contentType":"LEARNING","contentSlug":"choosing-structural-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_70632263cf973b25e4fde8517ca67c71","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Strategy Pattern","order":1,"contentType":"LEARNING","contentSlug":"strategy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_646cb1710a949e774ecd419bc7853aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Observer Pattern","order":2,"contentType":"LEARNING","contentSlug":"observer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_dc4f30fe1564a0e10ec0fb62f640ac65","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Command Pattern","order":3,"contentType":"LEARNING","contentSlug":"command-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_75df3a4559b3bd3f5f249edc874f6206","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"State Pattern","order":4,"contentType":"LEARNING","contentSlug":"state-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_75cc9337a9b812b9e549e2d263319fc2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Template Method Pattern","order":5,"contentType":"LEARNING","contentSlug":"template-method-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_e3678090f7b3725a84789e969173868b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Iterator Pattern","order":6,"contentType":"LEARNING","contentSlug":"iterator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_be8abee8a52cd2646b4092c8cee67783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Chain Of Responsibility Pattern","order":1,"contentType":"LEARNING","contentSlug":"chain-of-responsibility-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_9bc98cba340e6bd3c283cb2c5350626c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Mediator Pattern","order":2,"contentType":"LEARNING","contentSlug":"mediator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_fce610c28bd52a824515914ba0e3b716","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Memento Pattern","order":3,"contentType":"LEARNING","contentSlug":"memento-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_d4666190c22b4bd8547cd01477c43183","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Visitor Pattern","order":4,"contentType":"LEARNING","contentSlug":"visitor-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_12d0863cd076b537b01eea9a7a9487e4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Interpreter Pattern","order":5,"contentType":"LEARNING","contentSlug":"interpreter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_ae2380472c4e2f698a7e70c46cad2a7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Null Object Pattern","order":6,"contentType":"LEARNING","contentSlug":"null-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_494dbe0016c35cd34196f1246971049f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Choosing Behavioral Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-behavioral-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_b514626cfb1a543278fe504ad0fa7d7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Dependency Injection Revisited","order":1,"contentType":"LEARNING","contentSlug":"dependency-injection-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_9a1e614f6d9d85a73165cd9b03f8836d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Constructor Injection","order":2,"contentType":"LEARNING","contentSlug":"constructor-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_98151bb4f7025da1c313c7b6d19dea45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Setter Injection","order":3,"contentType":"LEARNING","contentSlug":"setter-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_04231ad363d038112c54c0f119c05a46","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Interface Injection","order":4,"contentType":"LEARNING","contentSlug":"interface-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_19d079c1f928d92606c1751a1562a53a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Service Locator Vs Dependency Injection","order":5,"contentType":"LEARNING","contentSlug":"service-locator-vs-dependency-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z"},{"id":"seed_c3dd4b4411e2db18ab1743670a962a05","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Ioc Container Deep Dive","order":6,"contentType":"LEARNING","contentSlug":"ioc-container-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_7ced201633a0e7cef8e78096bfe4ac79","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Lifetime Management","order":7,"contentType":"LEARNING","contentSlug":"lifetime-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_82f189a2b188e10512b5e94ee82e4ca5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Di Anti Patterns And Best Practices","order":8,"contentType":"LEARNING","contentSlug":"di-anti-patterns-and-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_8cf35d216a3dbd388c9ef97ee2b7c846","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Why Concurrency Matters","order":1,"contentType":"LEARNING","contentSlug":"why-concurrency-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_d1423b163211de48afa68240946de736","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Threads And Processes","order":2,"contentType":"LEARNING","contentSlug":"threads-and-processes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_61cc9efb445be26d5fabe36bcd3e40b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Thread Safety","order":3,"contentType":"LEARNING","contentSlug":"thread-safety","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_27aa7f16765859c9226c842360339c73","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Synchronization Primitives","order":4,"contentType":"LEARNING","contentSlug":"synchronization-primitives","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_d22f93b8277eb4c8b5330e74a2de02b0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Deadlocks And Prevention","order":5,"contentType":"LEARNING","contentSlug":"deadlocks-and-prevention","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_c35af1bd0829845a161c5c5cb6bd3e11","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Atomic Operations","order":6,"contentType":"LEARNING","contentSlug":"atomic-operations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_37ea72e10a41e6b6aa877126af078a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Producer Consumer Pattern","order":1,"contentType":"LEARNING","contentSlug":"producer-consumer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_64280f44c445925c5fc9b746d05d71e8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Thread Pool Pattern","order":2,"contentType":"LEARNING","contentSlug":"thread-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_185a4364516655a64d39728fdcd18385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Read Write Lock Pattern","order":3,"contentType":"LEARNING","contentSlug":"read-write-lock-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_82c2701d283cc74f9716a92777746e49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Future Promise Pattern","order":4,"contentType":"LEARNING","contentSlug":"future-promise-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_ac1a1c58001d5fc8b2ed7e84bd276221","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Double Checked Locking","order":5,"contentType":"LEARNING","contentSlug":"double-checked-locking","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_8173ee638491556066a373ae80c7d07a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Immutable Objects For Concurrency","order":6,"contentType":"LEARNING","contentSlug":"immutable-objects-for-concurrency","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_70367bbd38860adf1d607c3e50d5904d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Active Object Pattern","order":7,"contentType":"LEARNING","contentSlug":"active-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_2bd3cfba0e7efdc56d467d2d99c2c422","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Introduction To Ddd","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-ddd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_22433df8915d434869882c61cb90adaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Entities","order":2,"contentType":"LEARNING","contentSlug":"entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_5705fb8dc1875652a4884ff128bf57f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Value Objects","order":3,"contentType":"LEARNING","contentSlug":"ddd-value-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_46b012310328e6b9eff4307e9f45b037","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Aggregates","order":4,"contentType":"LEARNING","contentSlug":"ddd/aggregates","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z"},{"id":"seed_74503f636a680ff917bda14b7396a9ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Repositories","order":5,"contentType":"LEARNING","contentSlug":"ddd-repositories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_0e4408f53c5f89c5597031c848a8cce8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Events","order":6,"contentType":"LEARNING","contentSlug":"lld-domain-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_6d280f72b9c1345121ea5551b247b5cf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Services","order":7,"contentType":"LEARNING","contentSlug":"domain-services","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_b056fdc7aaf01d3d0a66f5e54b9eb2da","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Bounded Contexts","order":8,"contentType":"LEARNING","contentSlug":"ddd-bounded-contexts","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_e969405d3072826fe3288b0faed809a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Why Architecture Matters","order":1,"contentType":"LEARNING","contentSlug":"why-architecture-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_9d88a999847f23611ddf1f33560c7b85","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Traditional Layered Architecture","order":2,"contentType":"LEARNING","contentSlug":"traditional-layered-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_87776ac6b08a2cf2dee32ce800992d94","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Hexagonal Architecture","order":3,"contentType":"LEARNING","contentSlug":"hexagonal-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_e36d409ac217efeb3bd628f702a4183b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Onion Architecture","order":4,"contentType":"LEARNING","contentSlug":"onion-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_900e5754b9841ac60ab72998bb78ec1a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Clean Architecture","order":5,"contentType":"LEARNING","contentSlug":"clean-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_47eac867e3933c50925f76a2d5126e1d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Choosing An Architecture","order":6,"contentType":"LEARNING","contentSlug":"choosing-an-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_195c934cc23a12776a5750015e53d3a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Package Module Organization","order":7,"contentType":"LEARNING","contentSlug":"package-module-organization","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_d7bbee67563121e8eac197c6b87d4448","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"What Is A Good Api","order":1,"contentType":"LEARNING","contentSlug":"what-is-a-good-api","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_0568d519482b1bc1d4ac631c2e07601e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Method Signature Design","order":2,"contentType":"LEARNING","contentSlug":"method-signature-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_f8350b1533548ee392cba6848ef6fd41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Error Handling In Apis","order":3,"contentType":"LEARNING","contentSlug":"error-handling-in-apis","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_591ee39701eb3dbdeb8317a46f343918","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Api Versioning","order":4,"contentType":"LEARNING","contentSlug":"lld-api-versioning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_283d4e739aa1cad00c72f68973fa990d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Restful Api Design Principles","order":5,"contentType":"LEARNING","contentSlug":"restful-api-design-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_ff0cf622c7e78232d3aff5b8627dbe15","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Dto Design","order":6,"contentType":"LEARNING","contentSlug":"dto-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_58122aff377e2df7afa4cbde77d60384","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Api Documentation","order":7,"contentType":"LEARNING","contentSlug":"lld-api-documentation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_b4510f16e895b628bec703e1c44bb548","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Persistence Layer Responsibilities","order":1,"contentType":"LEARNING","contentSlug":"persistence-layer-responsibilities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_dc4603e10f4c03575065d7c01f8b9e18","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Repository Pattern Deep Dive","order":2,"contentType":"LEARNING","contentSlug":"repository-pattern-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_87bb1cc41328a11ed417c0934effa700","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Access Object Dao Pattern","order":3,"contentType":"LEARNING","contentSlug":"dao-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_d8528ff184ec6d80f953cc86dff376d7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Unit Of Work Pattern","order":4,"contentType":"LEARNING","contentSlug":"unit-of-work-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z"},{"id":"seed_c98805d55ac5cb5e70498370a1223eba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Orm Considerations","order":5,"contentType":"LEARNING","contentSlug":"orm-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_0281bee3cbc4ea9b5fe9a5441b08068b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Modeling For Lld","order":6,"contentType":"LEARNING","contentSlug":"data-modeling-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_4962bf5ab4784167e4ee6f1a693379ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Database Transactions At Lld Level","order":7,"contentType":"LEARNING","contentSlug":"database-transactions-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_bea5f9bc1d6e29035e6e8e5dbbffc261","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Why Caching Matters","order":1,"contentType":"LEARNING","contentSlug":"lld-why-caching-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_10ef959e8938013bc82b751fc288c095","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Patterns","order":2,"contentType":"LEARNING","contentSlug":"cache-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_0d28bdca3ae62b9f4e68fd8bcd4edb8d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Design Considerations","order":3,"contentType":"LEARNING","contentSlug":"cache-design-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_a424d8b598bb6cca682da8a79b89aed3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Testing And Monitoring","order":4,"contentType":"LEARNING","contentSlug":"cache-testing-and-monitoring","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_4b3cd8a6c5cc668e960c80db504cef49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Cache Invalidation Strategies","order":1,"contentType":"LEARNING","contentSlug":"lld-cache-invalidation-strategies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_49efc881b04b3a49d57201aa5dd4ea32","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Caching In Object Design","order":2,"contentType":"LEARNING","contentSlug":"caching-in-object-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_b82e80ae95c58d41ffe5c6870b9b59f2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Introduction To Event Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-event-driven-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_8f79c7e0b23b60ea393ad98d03690b38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Domain Events","order":2,"contentType":"LEARNING","contentSlug":"lld-event-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_06bbd72d0bb249a33271106d683547fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Handlers","order":3,"contentType":"LEARNING","contentSlug":"event-handlers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_b2e883e2e24a18967d8a348011cfee38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Publish Subscribe Pattern","order":4,"contentType":"LEARNING","contentSlug":"publish-subscribe-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_109ac57bdeca7226070a67990d371774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Sourcing Basics","order":5,"contentType":"LEARNING","contentSlug":"event-sourcing-basics","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_8d837d5960373ce745a8f934a8c7ca36","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Driven Integration","order":6,"contentType":"LEARNING","contentSlug":"event-driven-integration","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_ed06adfc099b4102e2b52095d918f083","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Testing Event Driven Designs","order":7,"contentType":"LEARNING","contentSlug":"testing-event-driven-designs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_c1ad9b422bfa797c7b9e020e99593a13","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"What Is Resource Management","order":1,"contentType":"LEARNING","contentSlug":"what-is-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_f5f13bebb6d4c714f5a01df235277b70","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Object Lifecycle Management","order":2,"contentType":"LEARNING","contentSlug":"object-lifecycle-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_8d20adecb3526f7ee11180a1e9c34eb1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Disposable Pattern","order":3,"contentType":"LEARNING","contentSlug":"disposable-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_cf0472cf09370350a71f37aa0aa85cd8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Connection Pooling","order":4,"contentType":"LEARNING","contentSlug":"lld-connection-pooling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z"},{"id":"seed_b0764df0bb8da458e56a2b2294848694","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Memory Management Considerations","order":5,"contentType":"LEARNING","contentSlug":"memory-management-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_f19607253ce9792bb396e69a77eed032","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Resource Acquisition Patterns","order":6,"contentType":"LEARNING","contentSlug":"resource-acquisition-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_1605a58580415b26519b63986566f30e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Testing Resource Management","order":7,"contentType":"LEARNING","contentSlug":"testing-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_4f4f61713f44a4748f5dcacd7704044d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Errors Vs Exceptions","order":1,"contentType":"LEARNING","contentSlug":"errors-vs-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_f139140e44bc8284f3283f15b28c6789","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Hierarchy Design","order":2,"contentType":"LEARNING","contentSlug":"exception-hierarchy-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_59376056950b4eb77ae473f68b7e84f9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Checked Vs Unchecked Exceptions","order":3,"contentType":"LEARNING","contentSlug":"checked-vs-unchecked-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_90284d6a08cbb23a1d229a429e4d2be1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error States And Result Types","order":4,"contentType":"LEARNING","contentSlug":"error-states-and-result-types","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_1eff0831eadd7f32c8dc4eaefea7dbad","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Handling Best Practices","order":5,"contentType":"LEARNING","contentSlug":"exception-handling-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_9c292ae3f643e1f08e1ee54aa95a8e58","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Validation And Defensive Programming","order":6,"contentType":"LEARNING","contentSlug":"validation-and-defensive-programming","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_f20ac222f72ba6bea1f48655fcdfa8d2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error Handling At Boundaries","order":7,"contentType":"LEARNING","contentSlug":"error-handling-at-boundaries","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_f7e1e7a381aa053c8ed9cf96ae771aee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Why Testing Matters For Lld","order":1,"contentType":"LEARNING","contentSlug":"why-testing-matters-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_40ff9cee014cb4b748bc0a1344050c02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Unit Testing Fundamentals","order":2,"contentType":"LEARNING","contentSlug":"unit-testing-fundamentals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_069c54679b4961f071407080de0a8040","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Doubles Mocks Stubs Fakes","order":3,"contentType":"LEARNING","contentSlug":"test-doubles-mocks-stubs-fakes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_0650cdf2c09e6c2dd19ea812fa05f4b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Mocking Dependencies","order":4,"contentType":"LEARNING","contentSlug":"mocking-dependencies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_4b048089a091123945ef416a1705bc45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Driven Development Tdd","order":5,"contentType":"LEARNING","contentSlug":"test-driven-development-tdd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_2b456057eff2dfda7b9bb70fcf99e109","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Testing Private Methods And Internals","order":6,"contentType":"LEARNING","contentSlug":"testing-private-methods-and-internals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_ad95c3a9dddba788da8eed039a3c9910","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Integration Testing At Lld Level","order":7,"contentType":"LEARNING","contentSlug":"integration-testing-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_deff3612e1ba63663931076321b23df5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Code Coverage And Test Quality","order":8,"contentType":"LEARNING","contentSlug":"code-coverage-and-test-quality","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_1861177da832c9f94511a739d5aa211a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Logging In Lld","order":1,"contentType":"LEARNING","contentSlug":"logging-in-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_6b82f19778d58182faafc6495ed4ceec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Observability Design","order":2,"contentType":"LEARNING","contentSlug":"observability-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z"},{"id":"seed_b57dcef5420a9f6d1d2a06a59a78bbec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Security Patterns","order":3,"contentType":"LEARNING","contentSlug":"security-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_9fb8d235292aa1c55ffc4bf05f3f8087","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Secrets Management","order":4,"contentType":"LEARNING","contentSlug":"lld-secrets-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_97047b89732bd7130a4166bd65e49aec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Configuration Management","order":5,"contentType":"LEARNING","contentSlug":"lld-configuration-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_c293605b7667addc3a6d06d7c0659149","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Feature Flags","order":6,"contentType":"LEARNING","contentSlug":"feature-flags","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_5d9b697b8efe24331d37db4008e5f71e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Understanding Lld Problem Statements","order":1,"contentType":"LEARNING","contentSlug":"understanding-lld-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_558782d3e1900dffcf12c15d3cb0fa4b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Gathering Requirements","order":2,"contentType":"LEARNING","contentSlug":"gathering-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_5a219cc7ca52fa64076fa1f99b67d702","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Identifying Core Entities","order":3,"contentType":"LEARNING","contentSlug":"identifying-core-entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_1e025dbbd91b0b0373f17ae00089dad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Defining Relationships","order":4,"contentType":"LEARNING","contentSlug":"defining-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_4f4fe161105fd25a5d33b47a7454fbd2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Applying Design Patterns","order":5,"contentType":"LEARNING","contentSlug":"applying-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_cc1d1a47d75fc356a9e5ddcb53b8f1a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Validating The Design","order":6,"contentType":"LEARNING","contentSlug":"validating-the-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_2dcaf667097c2de0587d815d4de1c9a7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Iterating And Refining","order":7,"contentType":"LEARNING","contentSlug":"iterating-and-refining","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_822e239d3c3560d84663d1090db0aba6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Parking Lot System","order":1,"contentType":"LEARNING","contentSlug":"parking-lot-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_84f756f5d53c5103e5562ab995bf1cf9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Library Management System","order":2,"contentType":"LEARNING","contentSlug":"library-management-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_641e4a13c52b22fcc8b25278fbdb826e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Elevator System","order":3,"contentType":"LEARNING","contentSlug":"elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_52d436178e0c7535ce8be37bba0f8972","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Chess Game","order":4,"contentType":"LEARNING","contentSlug":"chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_850de741c37d894c0fce9b96bad6ed0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Ride Sharing Service","order":5,"contentType":"LEARNING","contentSlug":"ride-sharing-service","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_8ee6ebe6ec8f19bb0dfba0f25657576d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Hotel Booking System","order":6,"contentType":"LEARNING","contentSlug":"hotel-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z"},{"id":"seed_4259da5e2ba0b0c3cdaa93d220770d09","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"What Interviewers Look For","order":1,"contentType":"LEARNING","contentSlug":"lld-what-interviewers-look-for","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_0e8caf0f2da03d1990014db94d064783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Time Management In Lld Interviews","order":2,"contentType":"LEARNING","contentSlug":"time-management-lld-interviews","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_c16aca79dcb218e6fa6f6169da9265ba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Clarifying Requirements","order":3,"contentType":"LEARNING","contentSlug":"lld-clarifying-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_969e788846442d00cb875e8721a1e893","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Communicating Your Design","order":4,"contentType":"LEARNING","contentSlug":"communicating-your-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_c967003be2a3233b7b309d08a0de2a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Handling Constraints Trade Offs","order":5,"contentType":"LEARNING","contentSlug":"handling-constraints-trade-offs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_ddbe0c6f5048d91649789374b53ce876","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Common Lld Interview Problems","order":6,"contentType":"LEARNING","contentSlug":"common-lld-interview-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_00f30fd2acf005d93c84abdf67352391","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"From Design To Code","order":7,"contentType":"LEARNING","contentSlug":"from-design-to-code","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_4d94ab5db9fb0da5746416f8f10850c9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Code Organization Structure","order":8,"contentType":"LEARNING","contentSlug":"code-organization-structure","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_e0db266c4e4e3a884790a41d83d3020b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Refactoring Toward Better Design","order":9,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"},{"id":"seed_f268ce96bbb53953310e265b7e8ab7b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Continuous Learning","order":10,"contentType":"LEARNING","contentSlug":"continuous-learning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z"}],"sections":[{"title":"Chapter 1: Introduction To Lld","order":1,"modules":["$45:props:state:queries:0:state:data:json:modules:0","$45:props:state:queries:0:state:data:json:modules:1","$45:props:state:queries:0:state:data:json:modules:2","$45:props:state:queries:0:state:data:json:modules:3","$45:props:state:queries:0:state:data:json:modules:4","$45:props:state:queries:0:state:data:json:modules:5"]},{"title":"Chapter 2: Thinking In Objects","order":2,"modules":["$45:props:state:queries:0:state:data:json:modules:6","$45:props:state:queries:0:state:data:json:modules:7","$45:props:state:queries:0:state:data:json:modules:8","$45:props:state:queries:0:state:data:json:modules:9","$45:props:state:queries:0:state:data:json:modules:10","$45:props:state:queries:0:state:data:json:modules:11"]},{"title":"Chapter 3: Uml Design Representation","order":3,"modules":["$45:props:state:queries:0:state:data:json:modules:12","$45:props:state:queries:0:state:data:json:modules:13","$45:props:state:queries:0:state:data:json:modules:14","$45:props:state:queries:0:state:data:json:modules:15","$45:props:state:queries:0:state:data:json:modules:16","$45:props:state:queries:0:state:data:json:modules:17","$45:props:state:queries:0:state:data:json:modules:18","$45:props:state:queries:0:state:data:json:modules:19"]},{"title":"Chapter 4: Classes Objects The Building Blocks","order":4,"modules":["$45:props:state:queries:0:state:data:json:modules:20","$45:props:state:queries:0:state:data:json:modules:21","$45:props:state:queries:0:state:data:json:modules:22","$45:props:state:queries:0:state:data:json:modules:23","$45:props:state:queries:0:state:data:json:modules:24","$45:props:state:queries:0:state:data:json:modules:25","$45:props:state:queries:0:state:data:json:modules:26"]},{"title":"Chapter 5: Encapsulation Protecting Data Behavior","order":5,"modules":["$45:props:state:queries:0:state:data:json:modules:27","$45:props:state:queries:0:state:data:json:modules:28","$45:props:state:queries:0:state:data:json:modules:29","$45:props:state:queries:0:state:data:json:modules:30","$45:props:state:queries:0:state:data:json:modules:31","$45:props:state:queries:0:state:data:json:modules:32"]},{"title":"Chapter 6: Inheritance Reuse Hierarchies","order":6,"modules":["$45:props:state:queries:0:state:data:json:modules:33","$45:props:state:queries:0:state:data:json:modules:34","$45:props:state:queries:0:state:data:json:modules:35","$45:props:state:queries:0:state:data:json:modules:36","$45:props:state:queries:0:state:data:json:modules:37","$45:props:state:queries:0:state:data:json:modules:38","$45:props:state:queries:0:state:data:json:modules:39"]},{"title":"Chapter 7: Polymorphism Flexible Behavior","order":7,"modules":["$45:props:state:queries:0:state:data:json:modules:40","$45:props:state:queries:0:state:data:json:modules:41","$45:props:state:queries:0:state:data:json:modules:42","$45:props:state:queries:0:state:data:json:modules:43","$45:props:state:queries:0:state:data:json:modules:44","$45:props:state:queries:0:state:data:json:modules:45","$45:props:state:queries:0:state:data:json:modules:46"]},{"title":"Chapter 8: Abstraction Managing Complexity","order":8,"modules":["$45:props:state:queries:0:state:data:json:modules:47","$45:props:state:queries:0:state:data:json:modules:48","$45:props:state:queries:0:state:data:json:modules:49","$45:props:state:queries:0:state:data:json:modules:50","$45:props:state:queries:0:state:data:json:modules:51","$45:props:state:queries:0:state:data:json:modules:52"]},{"title":"Chapter 9: Composition Vs Inheritance","order":9,"modules":["$45:props:state:queries:0:state:data:json:modules:53","$45:props:state:queries:0:state:data:json:modules:54","$45:props:state:queries:0:state:data:json:modules:55","$45:props:state:queries:0:state:data:json:modules:56","$45:props:state:queries:0:state:data:json:modules:57","$45:props:state:queries:0:state:data:json:modules:58","$45:props:state:queries:0:state:data:json:modules:59"]},{"title":"Chapter 10: Single Responsibility Principle","order":10,"modules":["$45:props:state:queries:0:state:data:json:modules:60","$45:props:state:queries:0:state:data:json:modules:61","$45:props:state:queries:0:state:data:json:modules:62","$45:props:state:queries:0:state:data:json:modules:63","$45:props:state:queries:0:state:data:json:modules:64","$45:props:state:queries:0:state:data:json:modules:65"]},{"title":"Chapter 11: Open Closed Principle","order":11,"modules":["$45:props:state:queries:0:state:data:json:modules:66","$45:props:state:queries:0:state:data:json:modules:67","$45:props:state:queries:0:state:data:json:modules:68","$45:props:state:queries:0:state:data:json:modules:69","$45:props:state:queries:0:state:data:json:modules:70","$45:props:state:queries:0:state:data:json:modules:71"]},{"title":"Chapter 12: Liskov Substitution Principle","order":12,"modules":["$45:props:state:queries:0:state:data:json:modules:72","$45:props:state:queries:0:state:data:json:modules:73","$45:props:state:queries:0:state:data:json:modules:74","$45:props:state:queries:0:state:data:json:modules:75","$45:props:state:queries:0:state:data:json:modules:76","$45:props:state:queries:0:state:data:json:modules:77"]},{"title":"Chapter 13: Interface Segregation Principle","order":13,"modules":["$45:props:state:queries:0:state:data:json:modules:78","$45:props:state:queries:0:state:data:json:modules:79","$45:props:state:queries:0:state:data:json:modules:80","$45:props:state:queries:0:state:data:json:modules:81","$45:props:state:queries:0:state:data:json:modules:82","$45:props:state:queries:0:state:data:json:modules:83"]},{"title":"Chapter 14: Dependency Inversion Principle","order":14,"modules":["$45:props:state:queries:0:state:data:json:modules:84","$45:props:state:queries:0:state:data:json:modules:85","$45:props:state:queries:0:state:data:json:modules:86","$45:props:state:queries:0:state:data:json:modules:87","$45:props:state:queries:0:state:data:json:modules:88","$45:props:state:queries:0:state:data:json:modules:89"]},{"title":"Chapter 15: Other Essential Design Principles","order":15,"modules":["$45:props:state:queries:0:state:data:json:modules:90","$45:props:state:queries:0:state:data:json:modules:91","$45:props:state:queries:0:state:data:json:modules:92","$45:props:state:queries:0:state:data:json:modules:93","$45:props:state:queries:0:state:data:json:modules:94","$45:props:state:queries:0:state:data:json:modules:95","$45:props:state:queries:0:state:data:json:modules:96","$45:props:state:queries:0:state:data:json:modules:97"]},{"title":"Chapter 16: Introduction To Design Patterns","order":16,"modules":["$45:props:state:queries:0:state:data:json:modules:98","$45:props:state:queries:0:state:data:json:modules:99","$45:props:state:queries:0:state:data:json:modules:100","$45:props:state:queries:0:state:data:json:modules:101","$45:props:state:queries:0:state:data:json:modules:102","$45:props:state:queries:0:state:data:json:modules:103"]},{"title":"Chapter 17: Creational Patterns","order":17,"modules":["$45:props:state:queries:0:state:data:json:modules:104","$45:props:state:queries:0:state:data:json:modules:105","$45:props:state:queries:0:state:data:json:modules:106","$45:props:state:queries:0:state:data:json:modules:107","$45:props:state:queries:0:state:data:json:modules:108","$45:props:state:queries:0:state:data:json:modules:109","$45:props:state:queries:0:state:data:json:modules:110"]},{"title":"Chapter 18: Structural Patterns","order":18,"modules":["$45:props:state:queries:0:state:data:json:modules:111","$45:props:state:queries:0:state:data:json:modules:112","$45:props:state:queries:0:state:data:json:modules:113","$45:props:state:queries:0:state:data:json:modules:114","$45:props:state:queries:0:state:data:json:modules:115","$45:props:state:queries:0:state:data:json:modules:116","$45:props:state:queries:0:state:data:json:modules:117","$45:props:state:queries:0:state:data:json:modules:118"]},{"title":"Chapter 19: Behavioral Patterns Part 1","order":19,"modules":["$45:props:state:queries:0:state:data:json:modules:119","$45:props:state:queries:0:state:data:json:modules:120","$45:props:state:queries:0:state:data:json:modules:121","$45:props:state:queries:0:state:data:json:modules:122","$45:props:state:queries:0:state:data:json:modules:123","$45:props:state:queries:0:state:data:json:modules:124"]},{"title":"Chapter 20: Behavioral Patterns Part 2","order":20,"modules":["$45:props:state:queries:0:state:data:json:modules:125","$45:props:state:queries:0:state:data:json:modules:126","$45:props:state:queries:0:state:data:json:modules:127","$45:props:state:queries:0:state:data:json:modules:128","$45:props:state:queries:0:state:data:json:modules:129","$45:props:state:queries:0:state:data:json:modules:130","$45:props:state:queries:0:state:data:json:modules:131"]},{"title":"Chapter 21: Dependency Injection Deep Dive","order":21,"modules":["$45:props:state:queries:0:state:data:json:modules:132","$45:props:state:queries:0:state:data:json:modules:133","$45:props:state:queries:0:state:data:json:modules:134","$45:props:state:queries:0:state:data:json:modules:135","$45:props:state:queries:0:state:data:json:modules:136","$45:props:state:queries:0:state:data:json:modules:137","$45:props:state:queries:0:state:data:json:modules:138","$45:props:state:queries:0:state:data:json:modules:139"]},{"title":"Chapter 22: Concurrency Fundamentals","order":22,"modules":["$45:props:state:queries:0:state:data:json:modules:140","$45:props:state:queries:0:state:data:json:modules:141","$45:props:state:queries:0:state:data:json:modules:142","$45:props:state:queries:0:state:data:json:modules:143","$45:props:state:queries:0:state:data:json:modules:144","$45:props:state:queries:0:state:data:json:modules:145"]},{"title":"Chapter 23: Concurrency Patterns","order":23,"modules":["$45:props:state:queries:0:state:data:json:modules:146","$45:props:state:queries:0:state:data:json:modules:147","$45:props:state:queries:0:state:data:json:modules:148","$45:props:state:queries:0:state:data:json:modules:149","$45:props:state:queries:0:state:data:json:modules:150","$45:props:state:queries:0:state:data:json:modules:151","$45:props:state:queries:0:state:data:json:modules:152"]},{"title":"Chapter 24: Domain Driven Design","order":24,"modules":["$45:props:state:queries:0:state:data:json:modules:153","$45:props:state:queries:0:state:data:json:modules:154","$45:props:state:queries:0:state:data:json:modules:155","$45:props:state:queries:0:state:data:json:modules:156","$45:props:state:queries:0:state:data:json:modules:157","$45:props:state:queries:0:state:data:json:modules:158","$45:props:state:queries:0:state:data:json:modules:159","$45:props:state:queries:0:state:data:json:modules:160"]},{"title":"Chapter 25: Clean Layered Architecture","order":25,"modules":["$45:props:state:queries:0:state:data:json:modules:161","$45:props:state:queries:0:state:data:json:modules:162","$45:props:state:queries:0:state:data:json:modules:163","$45:props:state:queries:0:state:data:json:modules:164","$45:props:state:queries:0:state:data:json:modules:165","$45:props:state:queries:0:state:data:json:modules:166","$45:props:state:queries:0:state:data:json:modules:167"]},{"title":"Chapter 26: Api Interface Design","order":26,"modules":["$45:props:state:queries:0:state:data:json:modules:168","$45:props:state:queries:0:state:data:json:modules:169","$45:props:state:queries:0:state:data:json:modules:170","$45:props:state:queries:0:state:data:json:modules:171","$45:props:state:queries:0:state:data:json:modules:172","$45:props:state:queries:0:state:data:json:modules:173","$45:props:state:queries:0:state:data:json:modules:174"]},{"title":"Chapter 27: Persistence Layer Design","order":27,"modules":["$45:props:state:queries:0:state:data:json:modules:175","$45:props:state:queries:0:state:data:json:modules:176","$45:props:state:queries:0:state:data:json:modules:177","$45:props:state:queries:0:state:data:json:modules:178","$45:props:state:queries:0:state:data:json:modules:179","$45:props:state:queries:0:state:data:json:modules:180","$45:props:state:queries:0:state:data:json:modules:181"]},{"title":"Chapter 28: Caching Strategies","order":28,"modules":["$45:props:state:queries:0:state:data:json:modules:182","$45:props:state:queries:0:state:data:json:modules:183","$45:props:state:queries:0:state:data:json:modules:184","$45:props:state:queries:0:state:data:json:modules:185"]},{"title":"Chapter 28: Caching Strategies Lld","order":29,"modules":["$45:props:state:queries:0:state:data:json:modules:186","$45:props:state:queries:0:state:data:json:modules:187"]},{"title":"Chapter 29: Event Driven Design","order":30,"modules":["$45:props:state:queries:0:state:data:json:modules:188","$45:props:state:queries:0:state:data:json:modules:189","$45:props:state:queries:0:state:data:json:modules:190","$45:props:state:queries:0:state:data:json:modules:191","$45:props:state:queries:0:state:data:json:modules:192","$45:props:state:queries:0:state:data:json:modules:193","$45:props:state:queries:0:state:data:json:modules:194"]},{"title":"Chapter 30: Resource Management","order":31,"modules":["$45:props:state:queries:0:state:data:json:modules:195","$45:props:state:queries:0:state:data:json:modules:196","$45:props:state:queries:0:state:data:json:modules:197","$45:props:state:queries:0:state:data:json:modules:198","$45:props:state:queries:0:state:data:json:modules:199","$45:props:state:queries:0:state:data:json:modules:200","$45:props:state:queries:0:state:data:json:modules:201"]},{"title":"Chapter 31: Exception Error Handling Design","order":32,"modules":["$45:props:state:queries:0:state:data:json:modules:202","$45:props:state:queries:0:state:data:json:modules:203","$45:props:state:queries:0:state:data:json:modules:204","$45:props:state:queries:0:state:data:json:modules:205","$45:props:state:queries:0:state:data:json:modules:206","$45:props:state:queries:0:state:data:json:modules:207","$45:props:state:queries:0:state:data:json:modules:208"]},{"title":"Chapter 32: Testing Object Oriented Designs","order":33,"modules":["$45:props:state:queries:0:state:data:json:modules:209","$45:props:state:queries:0:state:data:json:modules:210","$45:props:state:queries:0:state:data:json:modules:211","$45:props:state:queries:0:state:data:json:modules:212","$45:props:state:queries:0:state:data:json:modules:213","$45:props:state:queries:0:state:data:json:modules:214","$45:props:state:queries:0:state:data:json:modules:215","$45:props:state:queries:0:state:data:json:modules:216"]},{"title":"Chapter 33: Logging Security Configuration","order":34,"modules":["$45:props:state:queries:0:state:data:json:modules:217","$45:props:state:queries:0:state:data:json:modules:218","$45:props:state:queries:0:state:data:json:modules:219","$45:props:state:queries:0:state:data:json:modules:220","$45:props:state:queries:0:state:data:json:modules:221","$45:props:state:queries:0:state:data:json:modules:222"]},{"title":"Chapter 34: Lld Problem Solving Framework","order":35,"modules":["$45:props:state:queries:0:state:data:json:modules:223","$45:props:state:queries:0:state:data:json:modules:224","$45:props:state:queries:0:state:data:json:modules:225","$45:props:state:queries:0:state:data:json:modules:226","$45:props:state:queries:0:state:data:json:modules:227","$45:props:state:queries:0:state:data:json:modules:228","$45:props:state:queries:0:state:data:json:modules:229"]},{"title":"Chapter 35: Case Studies","order":36,"modules":["$45:props:state:queries:0:state:data:json:modules:230","$45:props:state:queries:0:state:data:json:modules:231","$45:props:state:queries:0:state:data:json:modules:232","$45:props:state:queries:0:state:data:json:modules:233","$45:props:state:queries:0:state:data:json:modules:234","$45:props:state:queries:0:state:data:json:modules:235"]},{"title":"Chapter 36: Lld Interview Strategies Implementation","order":37,"modules":["$45:props:state:queries:0:state:data:json:modules:236","$45:props:state:queries:0:state:data:json:modules:237","$45:props:state:queries:0:state:data:json:modules:238","$45:props:state:queries:0:state:data:json:modules:239","$45:props:state:queries:0:state:data:json:modules:240","$45:props:state:queries:0:state:data:json:modules:241","$45:props:state:queries:0:state:data:json:modules:242","$45:props:state:queries:0:state:data:json:modules:243","$45:props:state:queries:0:state:data:json:modules:244","$45:props:state:queries:0:state:data:json:modules:245"]}]},"meta":{"values":{"createdAt":["Date"],"updatedAt":["Date"],"modules.0.createdAt":["Date"],"modules.0.updatedAt":["Date"],"modules.1.createdAt":["Date"],"modules.1.updatedAt":["Date"],"modules.2.createdAt":["Date"],"modules.2.updatedAt":["Date"],"modules.3.createdAt":["Date"],"modules.3.updatedAt":["Date"],"modules.4.createdAt":["Date"],"modules.4.updatedAt":["Date"],"modules.5.createdAt":["Date"],"modules.5.updatedAt":["Date"],"modules.6.createdAt":["Date"],"modules.6.updatedAt":["Date"],"modules.7.createdAt":["Date"],"modules.7.updatedAt":["Date"],"modules.8.createdAt":["Date"],"modules.8.updatedAt":["Date"],"modules.9.createdAt":["Date"],"modules.9.updatedAt":["Date"],"modules.10.createdAt":["Date"],"modules.10.updatedAt":["Date"],"modules.11.createdAt":["Date"],"modules.11.updatedAt":["Date"],"modules.12.createdAt":["Date"],"modules.12.updatedAt":["Date"],"modules.13.createdAt":["Date"],"modules.13.updatedAt":["Date"],"modules.14.createdAt":["Date"],"modules.14.updatedAt":["Date"],"modules.15.createdAt":["Date"],"modules.15.updatedAt":["Date"],"modules.16.createdAt":["Date"],"modules.16.updatedAt":["Date"],"modules.17.createdAt":["Date"],"modules.17.updatedAt":["Date"],"modules.18.createdAt":["Date"],"modules.18.updatedAt":["Date"],"modules.19.createdAt":["Date"],"modules.19.updatedAt":["Date"],"modules.20.createdAt":["Date"],"modules.20.updatedAt":["Date"],"modules.21.createdAt":["Date"],"modules.21.updatedAt":["Date"],"modules.22.createdAt":["Date"],"modules.22.updatedAt":["Date"],"modules.23.createdAt":["Date"],"modules.23.updatedAt":["Date"],"modules.24.createdAt":["Date"],"modules.24.updatedAt":["Date"],"modules.25.createdAt":["Date"],"modules.25.updatedAt":["Date"],"modules.26.createdAt":["Date"],"modules.26.updatedAt":["Date"],"modules.27.createdAt":["Date"],"modules.27.updatedAt":["Date"],"modules.28.createdAt":["Date"],"modules.28.updatedAt":["Date"],"modules.29.createdAt":["Date"],"modules.29.updatedAt":["Date"],"modules.30.createdAt":["Date"],"modules.30.updatedAt":["Date"],"modules.31.createdAt":["Date"],"modules.31.updatedAt":["Date"],"modules.32.createdAt":["Date"],"modules.32.updatedAt":["Date"],"modules.33.createdAt":["Date"],"modules.33.updatedAt":["Date"],"modules.34.createdAt":["Date"],"modules.34.updatedAt":["Date"],"modules.35.createdAt":["Date"],"modules.35.updatedAt":["Date"],"modules.36.createdAt":["Date"],"modules.36.updatedAt":["Date"],"modules.37.createdAt":["Date"],"modules.37.updatedAt":["Date"],"modules.38.createdAt":["Date"],"modules.38.updatedAt":["Date"],"modules.39.createdAt":["Date"],"modules.39.updatedAt":["Date"],"modules.40.createdAt":["Date"],"modules.40.updatedAt":["Date"],"modules.41.createdAt":["Date"],"modules.41.updatedAt":["Date"],"modules.42.createdAt":["Date"],"modules.42.updatedAt":["Date"],"modules.43.createdAt":["Date"],"modules.43.updatedAt":["Date"],"modules.44.createdAt":["Date"],"modules.44.updatedAt":["Date"],"modules.45.createdAt":["Date"],"modules.45.updatedAt":["Date"],"modules.46.createdAt":["Date"],"modules.46.updatedAt":["Date"],"modules.47.createdAt":["Date"],"modules.47.updatedAt":["Date"],"modules.48.createdAt":["Date"],"modules.48.updatedAt":["Date"],"modules.49.createdAt":["Date"],"modules.49.updatedAt":["Date"],"modules.50.createdAt":["Date"],"modules.50.updatedAt":["Date"],"modules.51.createdAt":["Date"],"modules.51.updatedAt":["Date"],"modules.52.createdAt":["Date"],"modules.52.updatedAt":["Date"],"modules.53.createdAt":["Date"],"modules.53.updatedAt":["Date"],"modules.54.createdAt":["Date"],"modules.54.updatedAt":["Date"],"modules.55.createdAt":["Date"],"modules.55.updatedAt":["Date"],"modules.56.createdAt":["Date"],"modules.56.updatedAt":["Date"],"modules.57.createdAt":["Date"],"modules.57.updatedAt":["Date"],"modules.58.createdAt":["Date"],"modules.58.updatedAt":["Date"],"modules.59.createdAt":["Date"],"modules.59.updatedAt":["Date"],"modules.60.createdAt":["Date"],"modules.60.updatedAt":["Date"],"modules.61.createdAt":["Date"],"modules.61.updatedAt":["Date"],"modules.62.createdAt":["Date"],"modules.62.updatedAt":["Date"],"modules.63.createdAt":["Date"],"modules.63.updatedAt":["Date"],"modules.64.createdAt":["Date"],"modules.64.updatedAt":["Date"],"modules.65.createdAt":["Date"],"modules.65.updatedAt":["Date"],"modules.66.createdAt":["Date"],"modules.66.updatedAt":["Date"],"modules.67.createdAt":["Date"],"modules.67.updatedAt":["Date"],"modules.68.createdAt":["Date"],"modules.68.updatedAt":["Date"],"modules.69.createdAt":["Date"],"modules.69.updatedAt":["Date"],"modules.70.createdAt":["Date"],"modules.70.updatedAt":["Date"],"modules.71.createdAt":["Date"],"modules.71.updatedAt":["Date"],"modules.72.createdAt":["Date"],"modules.72.updatedAt":["Date"],"modules.73.createdAt":["Date"],"modules.73.updatedAt":["Date"],"modules.74.createdAt":["Date"],"modules.74.updatedAt":["Date"],"modules.75.createdAt":["Date"],"modules.75.updatedAt":["Date"],"modules.76.createdAt":["Date"],"modules.76.updatedAt":["Date"],"modules.77.createdAt":["Date"],"modules.77.updatedAt":["Date"],"modules.78.createdAt":["Date"],"modules.78.updatedAt":["Date"],"modules.79.createdAt":["Date"],"modules.79.updatedAt":["Date"],"modules.80.createdAt":["Date"],"modules.80.updatedAt":["Date"],"modules.81.createdAt":["Date"],"modules.81.updatedAt":["Date"],"modules.82.createdAt":["Date"],"modules.82.updatedAt":["Date"],"modules.83.createdAt":["Date"],"modules.83.updatedAt":["Date"],"modules.84.createdAt":["Date"],"modules.84.updatedAt":["Date"],"modules.85.createdAt":["Date"],"modules.85.updatedAt":["Date"],"modules.86.createdAt":["Date"],"modules.86.updatedAt":["Date"],"modules.87.createdAt":["Date"],"modules.87.updatedAt":["Date"],"modules.88.createdAt":["Date"],"modules.88.updatedAt":["Date"],"modules.89.createdAt":["Date"],"modules.89.updatedAt":["Date"],"modules.90.createdAt":["Date"],"modules.90.updatedAt":["Date"],"modules.91.createdAt":["Date"],"modules.91.updatedAt":["Date"],"modules.92.createdAt":["Date"],"modules.92.updatedAt":["Date"],"modules.93.createdAt":["Date"],"modules.93.updatedAt":["Date"],"modules.94.createdAt":["Date"],"modules.94.updatedAt":["Date"],"modules.95.createdAt":["Date"],"modules.95.updatedAt":["Date"],"modules.96.createdAt":["Date"],"modules.96.updatedAt":["Date"],"modules.97.createdAt":["Date"],"modules.97.updatedAt":["Date"],"modules.98.createdAt":["Date"],"modules.98.updatedAt":["Date"],"modules.99.createdAt":["Date"],"modules.99.updatedAt":["Date"],"modules.100.createdAt":["Date"],"modules.100.updatedAt":["Date"],"modules.101.createdAt":["Date"],"modules.101.updatedAt":["Date"],"modules.102.createdAt":["Date"],"modules.102.updatedAt":["Date"],"modules.103.createdAt":["Date"],"modules.103.updatedAt":["Date"],"modules.104.createdAt":["Date"],"modules.104.updatedAt":["Date"],"modules.105.createdAt":["Date"],"modules.105.updatedAt":["Date"],"modules.106.createdAt":["Date"],"modules.106.updatedAt":["Date"],"modules.107.createdAt":["Date"],"modules.107.updatedAt":["Date"],"modules.108.createdAt":["Date"],"modules.108.updatedAt":["Date"],"modules.109.createdAt":["Date"],"modules.109.updatedAt":["Date"],"modules.110.createdAt":["Date"],"modules.110.updatedAt":["Date"],"modules.111.createdAt":["Date"],"modules.111.updatedAt":["Date"],"modules.112.createdAt":["Date"],"modules.112.updatedAt":["Date"],"modules.113.createdAt":["Date"],"modules.113.updatedAt":["Date"],"modules.114.createdAt":["Date"],"modules.114.updatedAt":["Date"],"modules.115.createdAt":["Date"],"modules.115.updatedAt":["Date"],"modules.116.createdAt":["Date"],"modules.116.updatedAt":["Date"],"modules.117.createdAt":["Date"],"modules.117.updatedAt":["Date"],"modules.118.createdAt":["Date"],"modules.118.updatedAt":["Date"],"modules.119.createdAt":["Date"],"modules.119.updatedAt":["Date"],"modules.120.createdAt":["Date"],"modules.120.updatedAt":["Date"],"modules.121.createdAt":["Date"],"modules.121.updatedAt":["Date"],"modules.122.createdAt":["Date"],"modules.122.updatedAt":["Date"],"modules.123.createdAt":["Date"],"modules.123.updatedAt":["Date"],"modules.124.createdAt":["Date"],"modules.124.updatedAt":["Date"],"modules.125.createdAt":["Date"],"modules.125.updatedAt":["Date"],"modules.126.createdAt":["Date"],"modules.126.updatedAt":["Date"],"modules.127.createdAt":["Date"],"modules.127.updatedAt":["Date"],"modules.128.createdAt":["Date"],"modules.128.updatedAt":["Date"],"modules.129.createdAt":["Date"],"modules.129.updatedAt":["Date"],"modules.130.createdAt":["Date"],"modules.130.updatedAt":["Date"],"modules.131.createdAt":["Date"],"modules.131.updatedAt":["Date"],"modules.132.createdAt":["Date"],"modules.132.updatedAt":["Date"],"modules.133.createdAt":["Date"],"modules.133.updatedAt":["Date"],"modules.134.createdAt":["Date"],"modules.134.updatedAt":["Date"],"modules.135.createdAt":["Date"],"modules.135.updatedAt":["Date"],"modules.136.createdAt":["Date"],"modules.136.updatedAt":["Date"],"modules.137.createdAt":["Date"],"modules.137.updatedAt":["Date"],"modules.138.createdAt":["Date"],"modules.138.updatedAt":["Date"],"modules.139.createdAt":["Date"],"modules.139.updatedAt":["Date"],"modules.140.createdAt":["Date"],"modules.140.updatedAt":["Date"],"modules.141.createdAt":["Date"],"modules.141.updatedAt":["Date"],"modules.142.createdAt":["Date"],"modules.142.updatedAt":["Date"],"modules.143.createdAt":["Date"],"modules.143.updatedAt":["Date"],"modules.144.createdAt":["Date"],"modules.144.updatedAt":["Date"],"modules.145.createdAt":["Date"],"modules.145.updatedAt":["Date"],"modules.146.createdAt":["Date"],"modules.146.updatedAt":["Date"],"modules.147.createdAt":["Date"],"modules.147.updatedAt":["Date"],"modules.148.createdAt":["Date"],"modules.148.updatedAt":["Date"],"modules.149.createdAt":["Date"],"modules.149.updatedAt":["Date"],"modules.150.createdAt":["Date"],"modules.150.updatedAt":["Date"],"modules.151.createdAt":["Date"],"modules.151.updatedAt":["Date"],"modules.152.createdAt":["Date"],"modules.152.updatedAt":["Date"],"modules.153.createdAt":["Date"],"modules.153.updatedAt":["Date"],"modules.154.createdAt":["Date"],"modules.154.updatedAt":["Date"],"modules.155.createdAt":["Date"],"modules.155.updatedAt":["Date"],"modules.156.createdAt":["Date"],"modules.156.updatedAt":["Date"],"modules.157.createdAt":["Date"],"modules.157.updatedAt":["Date"],"modules.158.createdAt":["Date"],"modules.158.updatedAt":["Date"],"modules.159.createdAt":["Date"],"modules.159.updatedAt":["Date"],"modules.160.createdAt":["Date"],"modules.160.updatedAt":["Date"],"modules.161.createdAt":["Date"],"modules.161.updatedAt":["Date"],"modules.162.createdAt":["Date"],"modules.162.updatedAt":["Date"],"modules.163.createdAt":["Date"],"modules.163.updatedAt":["Date"],"modules.164.createdAt":["Date"],"modules.164.updatedAt":["Date"],"modules.165.createdAt":["Date"],"modules.165.updatedAt":["Date"],"modules.166.createdAt":["Date"],"modules.166.updatedAt":["Date"],"modules.167.createdAt":["Date"],"modules.167.updatedAt":["Date"],"modules.168.createdAt":["Date"],"modules.168.updatedAt":["Date"],"modules.169.createdAt":["Date"],"modules.169.updatedAt":["Date"],"modules.170.createdAt":["Date"],"modules.170.updatedAt":["Date"],"modules.171.createdAt":["Date"],"modules.171.updatedAt":["Date"],"modules.172.createdAt":["Date"],"modules.172.updatedAt":["Date"],"modules.173.createdAt":["Date"],"modules.173.updatedAt":["Date"],"modules.174.createdAt":["Date"],"modules.174.updatedAt":["Date"],"modules.175.createdAt":["Date"],"modules.175.updatedAt":["Date"],"modules.176.createdAt":["Date"],"modules.176.updatedAt":["Date"],"modules.177.createdAt":["Date"],"modules.177.updatedAt":["Date"],"modules.178.createdAt":["Date"],"modules.178.updatedAt":["Date"],"modules.179.createdAt":["Date"],"modules.179.updatedAt":["Date"],"modules.180.createdAt":["Date"],"modules.180.updatedAt":["Date"],"modules.181.createdAt":["Date"],"modules.181.updatedAt":["Date"],"modules.182.createdAt":["Date"],"modules.182.updatedAt":["Date"],"modules.183.createdAt":["Date"],"modules.183.updatedAt":["Date"],"modules.184.createdAt":["Date"],"modules.184.updatedAt":["Date"],"modules.185.createdAt":["Date"],"modules.185.updatedAt":["Date"],"modules.186.createdAt":["Date"],"modules.186.updatedAt":["Date"],"modules.187.createdAt":["Date"],"modules.187.updatedAt":["Date"],"modules.188.createdAt":["Date"],"modules.188.updatedAt":["Date"],"modules.189.createdAt":["Date"],"modules.189.updatedAt":["Date"],"modules.190.createdAt":["Date"],"modules.190.updatedAt":["Date"],"modules.191.createdAt":["Date"],"modules.191.updatedAt":["Date"],"modules.192.createdAt":["Date"],"modules.192.updatedAt":["Date"],"modules.193.createdAt":["Date"],"modules.193.updatedAt":["Date"],"modules.194.createdAt":["Date"],"modules.194.updatedAt":["Date"],"modules.195.createdAt":["Date"],"modules.195.updatedAt":["Date"],"modules.196.createdAt":["Date"],"modules.196.updatedAt":["Date"],"modules.197.createdAt":["Date"],"modules.197.updatedAt":["Date"],"modules.198.createdAt":["Date"],"modules.198.updatedAt":["Date"],"modules.199.createdAt":["Date"],"modules.199.updatedAt":["Date"],"modules.200.createdAt":["Date"],"modules.200.updatedAt":["Date"],"modules.201.createdAt":["Date"],"modules.201.updatedAt":["Date"],"modules.202.createdAt":["Date"],"modules.202.updatedAt":["Date"],"modules.203.createdAt":["Date"],"modules.203.updatedAt":["Date"],"modules.204.createdAt":["Date"],"modules.204.updatedAt":["Date"],"modules.205.createdAt":["Date"],"modules.205.updatedAt":["Date"],"modules.206.createdAt":["Date"],"modules.206.updatedAt":["Date"],"modules.207.createdAt":["Date"],"modules.207.updatedAt":["Date"],"modules.208.createdAt":["Date"],"modules.208.updatedAt":["Date"],"modules.209.createdAt":["Date"],"modules.209.updatedAt":["Date"],"modules.210.createdAt":["Date"],"modules.210.updatedAt":["Date"],"modules.211.createdAt":["Date"],"modules.211.updatedAt":["Date"],"modules.212.createdAt":["Date"],"modules.212.updatedAt":["Date"],"modules.213.createdAt":["Date"],"modules.213.updatedAt":["Date"],"modules.214.createdAt":["Date"],"modules.214.updatedAt":["Date"],"modules.215.createdAt":["Date"],"modules.215.updatedAt":["Date"],"modules.216.createdAt":["Date"],"modules.216.updatedAt":["Date"],"modules.217.createdAt":["Date"],"modules.217.updatedAt":["Date"],"modules.218.createdAt":["Date"],"modules.218.updatedAt":["Date"],"modules.219.createdAt":["Date"],"modules.219.updatedAt":["Date"],"modules.220.createdAt":["Date"],"modules.220.updatedAt":["Date"],"modules.221.createdAt":["Date"],"modules.221.updatedAt":["Date"],"modules.222.createdAt":["Date"],"modules.222.updatedAt":["Date"],"modules.223.createdAt":["Date"],"modules.223.updatedAt":["Date"],"modules.224.createdAt":["Date"],"modules.224.updatedAt":["Date"],"modules.225.createdAt":["Date"],"modules.225.updatedAt":["Date"],"modules.226.createdAt":["Date"],"modules.226.updatedAt":["Date"],"modules.227.createdAt":["Date"],"modules.227.updatedAt":["Date"],"modules.228.createdAt":["Date"],"modules.228.updatedAt":["Date"],"modules.229.createdAt":["Date"],"modules.229.updatedAt":["Date"],"modules.230.createdAt":["Date"],"modules.230.updatedAt":["Date"],"modules.231.createdAt":["Date"],"modules.231.updatedAt":["Date"],"modules.232.createdAt":["Date"],"modules.232.updatedAt":["Date"],"modules.233.createdAt":["Date"],"modules.233.updatedAt":["Date"],"modules.234.createdAt":["Date"],"modules.234.updatedAt":["Date"],"modules.235.createdAt":["Date"],"modules.235.updatedAt":["Date"],"modules.236.createdAt":["Date"],"modules.236.updatedAt":["Date"],"modules.237.createdAt":["Date"],"modules.237.updatedAt":["Date"],"modules.238.createdAt":["Date"],"modules.238.updatedAt":["Date"],"modules.239.createdAt":["Date"],"modules.239.updatedAt":["Date"],"modules.240.createdAt":["Date"],"modules.240.updatedAt":["Date"],"modules.241.createdAt":["Date"],"modules.241.updatedAt":["Date"],"modules.242.createdAt":["Date"],"modules.242.updatedAt":["Date"],"modules.243.createdAt":["Date"],"modules.243.updatedAt":["Date"],"modules.244.createdAt":["Date"],"modules.244.updatedAt":["Date"],"modules.245.createdAt":["Date"],"modules.245.updatedAt":["Date"],"sections.0.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.0.createdAt","sections.0.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.0.updatedAt","sections.0.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.1.createdAt","sections.0.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.1.updatedAt","sections.0.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.2.createdAt","sections.0.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.2.updatedAt","sections.0.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.3.createdAt","sections.0.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.3.updatedAt","sections.0.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.4.createdAt","sections.0.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.4.updatedAt","sections.0.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.5.createdAt","sections.0.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.5.updatedAt","sections.1.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.6.createdAt","sections.1.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.6.updatedAt","sections.1.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.7.createdAt","sections.1.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.7.updatedAt","sections.1.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.8.createdAt","sections.1.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.8.updatedAt","sections.1.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.9.createdAt","sections.1.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.9.updatedAt","sections.1.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.10.createdAt","sections.1.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.10.updatedAt","sections.1.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.11.createdAt","sections.1.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.11.updatedAt","sections.2.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.12.createdAt","sections.2.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.12.updatedAt","sections.2.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.13.createdAt","sections.2.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.13.updatedAt","sections.2.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.14.createdAt","sections.2.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.14.updatedAt","sections.2.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.15.createdAt","sections.2.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.15.updatedAt","sections.2.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.16.createdAt","sections.2.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.16.updatedAt","sections.2.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.17.createdAt","sections.2.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.17.updatedAt","sections.2.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.18.createdAt","sections.2.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.18.updatedAt","sections.2.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.19.createdAt","sections.2.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.19.updatedAt","sections.3.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.20.createdAt","sections.3.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.20.updatedAt","sections.3.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.21.createdAt","sections.3.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.21.updatedAt","sections.3.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.22.createdAt","sections.3.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.22.updatedAt","sections.3.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.23.createdAt","sections.3.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.23.updatedAt","sections.3.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.24.createdAt","sections.3.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.24.updatedAt","sections.3.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.25.createdAt","sections.3.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.25.updatedAt","sections.3.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.26.createdAt","sections.3.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.26.updatedAt","sections.4.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.27.createdAt","sections.4.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.27.updatedAt","sections.4.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.28.createdAt","sections.4.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.28.updatedAt","sections.4.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.29.createdAt","sections.4.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.29.updatedAt","sections.4.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.30.createdAt","sections.4.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.30.updatedAt","sections.4.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.31.createdAt","sections.4.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.31.updatedAt","sections.4.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.32.createdAt","sections.4.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.32.updatedAt","sections.5.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.33.createdAt","sections.5.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.33.updatedAt","sections.5.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.34.createdAt","sections.5.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.34.updatedAt","sections.5.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.35.createdAt","sections.5.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.35.updatedAt","sections.5.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.36.createdAt","sections.5.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.36.updatedAt","sections.5.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.37.createdAt","sections.5.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.37.updatedAt","sections.5.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.38.createdAt","sections.5.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.38.updatedAt","sections.5.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.39.createdAt","sections.5.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.39.updatedAt","sections.6.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.40.createdAt","sections.6.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.40.updatedAt","sections.6.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.41.createdAt","sections.6.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.41.updatedAt","sections.6.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.42.createdAt","sections.6.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.42.updatedAt","sections.6.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.43.createdAt","sections.6.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.43.updatedAt","sections.6.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.44.createdAt","sections.6.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.44.updatedAt","sections.6.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.45.createdAt","sections.6.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.45.updatedAt","sections.6.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.46.createdAt","sections.6.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.46.updatedAt","sections.7.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.47.createdAt","sections.7.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.47.updatedAt","sections.7.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.48.createdAt","sections.7.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.48.updatedAt","sections.7.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.49.createdAt","sections.7.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.49.updatedAt","sections.7.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.50.createdAt","sections.7.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.50.updatedAt","sections.7.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.51.createdAt","sections.7.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.51.updatedAt","sections.7.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.52.createdAt","sections.7.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.52.updatedAt","sections.8.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.53.createdAt","sections.8.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.53.updatedAt","sections.8.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.54.createdAt","sections.8.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.54.updatedAt","sections.8.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.55.createdAt","sections.8.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.55.updatedAt","sections.8.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.56.createdAt","sections.8.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.56.updatedAt","sections.8.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.57.createdAt","sections.8.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.57.updatedAt","sections.8.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.58.createdAt","sections.8.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.58.updatedAt","sections.8.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.59.createdAt","sections.8.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.59.updatedAt","sections.9.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.60.createdAt","sections.9.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.60.updatedAt","sections.9.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.61.createdAt","sections.9.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.61.updatedAt","sections.9.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.62.createdAt","sections.9.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.62.updatedAt","sections.9.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.63.createdAt","sections.9.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.63.updatedAt","sections.9.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.64.createdAt","sections.9.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.64.updatedAt","sections.9.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.65.createdAt","sections.9.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.65.updatedAt","sections.10.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.66.createdAt","sections.10.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.66.updatedAt","sections.10.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.67.createdAt","sections.10.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.67.updatedAt","sections.10.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.68.createdAt","sections.10.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.68.updatedAt","sections.10.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.69.createdAt","sections.10.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.69.updatedAt","sections.10.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.70.createdAt","sections.10.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.70.updatedAt","sections.10.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.71.createdAt","sections.10.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.71.updatedAt","sections.11.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.72.createdAt","sections.11.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.72.updatedAt","sections.11.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.73.createdAt","sections.11.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.73.updatedAt","sections.11.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.74.createdAt","sections.11.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.74.updatedAt","sections.11.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.75.createdAt","sections.11.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.75.updatedAt","sections.11.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.76.createdAt","sections.11.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.76.updatedAt","sections.11.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.77.createdAt","sections.11.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.77.updatedAt","sections.12.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.78.createdAt","sections.12.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.78.updatedAt","sections.12.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.79.createdAt","sections.12.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.79.updatedAt","sections.12.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.80.createdAt","sections.12.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.80.updatedAt","sections.12.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.81.createdAt","sections.12.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.81.updatedAt","sections.12.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.82.createdAt","sections.12.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.82.updatedAt","sections.12.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.83.createdAt","sections.12.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.83.updatedAt","sections.13.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.84.createdAt","sections.13.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.84.updatedAt","sections.13.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.85.createdAt","sections.13.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.85.updatedAt","sections.13.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.86.createdAt","sections.13.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.86.updatedAt","sections.13.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.87.createdAt","sections.13.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.87.updatedAt","sections.13.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.88.createdAt","sections.13.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.88.updatedAt","sections.13.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.89.createdAt","sections.13.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.89.updatedAt","sections.14.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.90.createdAt","sections.14.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.90.updatedAt","sections.14.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.91.createdAt","sections.14.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.91.updatedAt","sections.14.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.92.createdAt","sections.14.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.92.updatedAt","sections.14.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.93.createdAt","sections.14.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.93.updatedAt","sections.14.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.94.createdAt","sections.14.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.94.updatedAt","sections.14.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.95.createdAt","sections.14.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.95.updatedAt","sections.14.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.96.createdAt","sections.14.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.96.updatedAt","sections.14.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.97.createdAt","sections.14.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.97.updatedAt","sections.15.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.98.createdAt","sections.15.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.98.updatedAt","sections.15.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.99.createdAt","sections.15.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.99.updatedAt","sections.15.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.100.createdAt","sections.15.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.100.updatedAt","sections.15.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.101.createdAt","sections.15.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.101.updatedAt","sections.15.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.102.createdAt","sections.15.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.102.updatedAt","sections.15.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.103.createdAt","sections.15.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.103.updatedAt","sections.16.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.104.createdAt","sections.16.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.104.updatedAt","sections.16.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.105.createdAt","sections.16.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.105.updatedAt","sections.16.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.106.createdAt","sections.16.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.106.updatedAt","sections.16.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.107.createdAt","sections.16.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.107.updatedAt","sections.16.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.108.createdAt","sections.16.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.108.updatedAt","sections.16.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.109.createdAt","sections.16.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.109.updatedAt","sections.16.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.110.createdAt","sections.16.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.110.updatedAt","sections.17.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.111.createdAt","sections.17.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.111.updatedAt","sections.17.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.112.createdAt","sections.17.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.112.updatedAt","sections.17.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.113.createdAt","sections.17.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.113.updatedAt","sections.17.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.114.createdAt","sections.17.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.114.updatedAt","sections.17.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.115.createdAt","sections.17.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.115.updatedAt","sections.17.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.116.createdAt","sections.17.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.116.updatedAt","sections.17.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.117.createdAt","sections.17.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.117.updatedAt","sections.17.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.118.createdAt","sections.17.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.118.updatedAt","sections.18.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.119.createdAt","sections.18.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.119.updatedAt","sections.18.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.120.createdAt","sections.18.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.120.updatedAt","sections.18.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.121.createdAt","sections.18.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.121.updatedAt","sections.18.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.122.createdAt","sections.18.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.122.updatedAt","sections.18.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.123.createdAt","sections.18.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.123.updatedAt","sections.18.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.124.createdAt","sections.18.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.124.updatedAt","sections.19.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.125.createdAt","sections.19.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.125.updatedAt","sections.19.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.126.createdAt","sections.19.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.126.updatedAt","sections.19.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.127.createdAt","sections.19.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.127.updatedAt","sections.19.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.128.createdAt","sections.19.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.128.updatedAt","sections.19.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.129.createdAt","sections.19.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.129.updatedAt","sections.19.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.130.createdAt","sections.19.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.130.updatedAt","sections.19.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.131.createdAt","sections.19.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.131.updatedAt","sections.20.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.132.createdAt","sections.20.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.132.updatedAt","sections.20.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.133.createdAt","sections.20.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.133.updatedAt","sections.20.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.134.createdAt","sections.20.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.134.updatedAt","sections.20.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.135.createdAt","sections.20.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.135.updatedAt","sections.20.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.136.createdAt","sections.20.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.136.updatedAt","sections.20.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.137.createdAt","sections.20.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.137.updatedAt","sections.20.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.138.createdAt","sections.20.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.138.updatedAt","sections.20.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.139.createdAt","sections.20.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.139.updatedAt","sections.21.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.140.createdAt","sections.21.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.140.updatedAt","sections.21.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.141.createdAt","sections.21.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.141.updatedAt","sections.21.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.142.createdAt","sections.21.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.142.updatedAt","sections.21.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.143.createdAt","sections.21.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.143.updatedAt","sections.21.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.144.createdAt","sections.21.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.144.updatedAt","sections.21.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.145.createdAt","sections.21.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.145.updatedAt","sections.22.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.146.createdAt","sections.22.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.146.updatedAt","sections.22.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.147.createdAt","sections.22.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.147.updatedAt","sections.22.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.148.createdAt","sections.22.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.148.updatedAt","sections.22.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.149.createdAt","sections.22.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.149.updatedAt","sections.22.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.150.createdAt","sections.22.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.150.updatedAt","sections.22.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.151.createdAt","sections.22.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.151.updatedAt","sections.22.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.152.createdAt","sections.22.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.152.updatedAt","sections.23.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.153.createdAt","sections.23.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.153.updatedAt","sections.23.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.154.createdAt","sections.23.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.154.updatedAt","sections.23.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.155.createdAt","sections.23.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.155.updatedAt","sections.23.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.156.createdAt","sections.23.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.156.updatedAt","sections.23.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.157.createdAt","sections.23.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.157.updatedAt","sections.23.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.158.createdAt","sections.23.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.158.updatedAt","sections.23.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.159.createdAt","sections.23.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.159.updatedAt","sections.23.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.160.createdAt","sections.23.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.160.updatedAt","sections.24.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.161.createdAt","sections.24.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.161.updatedAt","sections.24.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.162.createdAt","sections.24.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.162.updatedAt","sections.24.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.163.createdAt","sections.24.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.163.updatedAt","sections.24.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.164.createdAt","sections.24.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.164.updatedAt","sections.24.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.165.createdAt","sections.24.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.165.updatedAt","sections.24.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.166.createdAt","sections.24.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.166.updatedAt","sections.24.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.167.createdAt","sections.24.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.167.updatedAt","sections.25.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.168.createdAt","sections.25.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.168.updatedAt","sections.25.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.169.createdAt","sections.25.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.169.updatedAt","sections.25.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.170.createdAt","sections.25.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.170.updatedAt","sections.25.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.171.createdAt","sections.25.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.171.updatedAt","sections.25.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.172.createdAt","sections.25.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.172.updatedAt","sections.25.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.173.createdAt","sections.25.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.173.updatedAt","sections.25.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.174.createdAt","sections.25.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.174.updatedAt","sections.26.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.175.createdAt","sections.26.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.175.updatedAt","sections.26.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.176.createdAt","sections.26.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.176.updatedAt","sections.26.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.177.createdAt","sections.26.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.177.updatedAt","sections.26.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.178.createdAt","sections.26.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.178.updatedAt","sections.26.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.179.createdAt","sections.26.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.179.updatedAt","sections.26.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.180.createdAt","sections.26.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.180.updatedAt","sections.26.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.181.createdAt","sections.26.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.181.updatedAt","sections.27.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.182.createdAt","sections.27.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.182.updatedAt","sections.27.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.183.createdAt","sections.27.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.183.updatedAt","sections.27.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.184.createdAt","sections.27.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.184.updatedAt","sections.27.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.185.createdAt","sections.27.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.185.updatedAt","sections.28.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.186.createdAt","sections.28.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.186.updatedAt","sections.28.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.187.createdAt","sections.28.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.187.updatedAt","sections.29.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.188.createdAt","sections.29.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.188.updatedAt","sections.29.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.189.createdAt","sections.29.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.189.updatedAt","sections.29.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.190.createdAt","sections.29.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.190.updatedAt","sections.29.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.191.createdAt","sections.29.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.191.updatedAt","sections.29.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.192.createdAt","sections.29.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.192.updatedAt","sections.29.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.193.createdAt","sections.29.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.193.updatedAt","sections.29.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.194.createdAt","sections.29.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.194.updatedAt","sections.30.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.195.createdAt","sections.30.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.195.updatedAt","sections.30.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.196.createdAt","sections.30.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.196.updatedAt","sections.30.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.197.createdAt","sections.30.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.197.updatedAt","sections.30.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.198.createdAt","sections.30.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.198.updatedAt","sections.30.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.199.createdAt","sections.30.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.199.updatedAt","sections.30.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.200.createdAt","sections.30.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.200.updatedAt","sections.30.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.201.createdAt","sections.30.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.201.updatedAt","sections.31.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.202.createdAt","sections.31.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.202.updatedAt","sections.31.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.203.createdAt","sections.31.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.203.updatedAt","sections.31.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.204.createdAt","sections.31.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.204.updatedAt","sections.31.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.205.createdAt","sections.31.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.205.updatedAt","sections.31.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.206.createdAt","sections.31.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.206.updatedAt","sections.31.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.207.createdAt","sections.31.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.207.updatedAt","sections.31.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.208.createdAt","sections.31.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.208.updatedAt","sections.32.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.209.createdAt","sections.32.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.209.updatedAt","sections.32.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.210.createdAt","sections.32.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.210.updatedAt","sections.32.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.211.createdAt","sections.32.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.211.updatedAt","sections.32.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.212.createdAt","sections.32.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.212.updatedAt","sections.32.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.213.createdAt","sections.32.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.213.updatedAt","sections.32.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.214.createdAt","sections.32.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.214.updatedAt","sections.32.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.215.createdAt","sections.32.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.215.updatedAt","sections.32.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.216.createdAt","sections.32.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.216.updatedAt","sections.33.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.217.createdAt","sections.33.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.217.updatedAt","sections.33.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.218.createdAt","sections.33.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.218.updatedAt","sections.33.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.219.createdAt","sections.33.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.219.updatedAt","sections.33.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.220.createdAt","sections.33.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.220.updatedAt","sections.33.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.221.createdAt","sections.33.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.221.updatedAt","sections.33.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.222.createdAt","sections.33.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.222.updatedAt","sections.34.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.223.createdAt","sections.34.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.223.updatedAt","sections.34.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.224.createdAt","sections.34.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.224.updatedAt","sections.34.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.225.createdAt","sections.34.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.225.updatedAt","sections.34.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.226.createdAt","sections.34.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.226.updatedAt","sections.34.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.227.createdAt","sections.34.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.227.updatedAt","sections.34.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.228.createdAt","sections.34.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.228.updatedAt","sections.34.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.229.createdAt","sections.34.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.229.updatedAt","sections.35.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.230.createdAt","sections.35.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.230.updatedAt","sections.35.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.231.createdAt","sections.35.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.231.updatedAt","sections.35.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.232.createdAt","sections.35.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.232.updatedAt","sections.35.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.233.createdAt","sections.35.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.233.updatedAt","sections.35.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.234.createdAt","sections.35.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.234.updatedAt","sections.35.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.235.createdAt","sections.35.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.235.updatedAt","sections.36.modules.0.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.236.createdAt","sections.36.modules.0.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.236.updatedAt","sections.36.modules.1.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.237.createdAt","sections.36.modules.1.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.237.updatedAt","sections.36.modules.2.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.238.createdAt","sections.36.modules.2.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.238.updatedAt","sections.36.modules.3.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.239.createdAt","sections.36.modules.3.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.239.updatedAt","sections.36.modules.4.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.240.createdAt","sections.36.modules.4.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.240.updatedAt","sections.36.modules.5.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.241.createdAt","sections.36.modules.5.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.241.updatedAt","sections.36.modules.6.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.242.createdAt","sections.36.modules.6.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.242.updatedAt","sections.36.modules.7.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.243.createdAt","sections.36.modules.7.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.243.updatedAt","sections.36.modules.8.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.244.createdAt","sections.36.modules.8.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.244.updatedAt","sections.36.modules.9.createdAt":"$45:props:state:queries:0:state:data:meta:values:modules.245.createdAt","sections.36.modules.9.updatedAt":"$45:props:state:queries:0:state:data:meta:values:modules.245.updatedAt"},"referentialEqualities":{"modules.0":["sections.0.modules.0"],"modules.1":["sections.0.modules.1"],"modules.2":["sections.0.modules.2"],"modules.3":["sections.0.modules.3"],"modules.4":["sections.0.modules.4"],"modules.5":["sections.0.modules.5"],"modules.6":["sections.1.modules.0"],"modules.7":["sections.1.modules.1"],"modules.8":["sections.1.modules.2"],"modules.9":["sections.1.modules.3"],"modules.10":["sections.1.modules.4"],"modules.11":["sections.1.modules.5"],"modules.12":["sections.2.modules.0"],"modules.13":["sections.2.modules.1"],"modules.14":["sections.2.modules.2"],"modules.15":["sections.2.modules.3"],"modules.16":["sections.2.modules.4"],"modules.17":["sections.2.modules.5"],"modules.18":["sections.2.modules.6"],"modules.19":["sections.2.modules.7"],"modules.20":["sections.3.modules.0"],"modules.21":["sections.3.modules.1"],"modules.22":["sections.3.modules.2"],"modules.23":["sections.3.modules.3"],"modules.24":["sections.3.modules.4"],"modules.25":["sections.3.modules.5"],"modules.26":["sections.3.modules.6"],"modules.27":["sections.4.modules.0"],"modules.28":["sections.4.modules.1"],"modules.29":["sections.4.modules.2"],"modules.30":["sections.4.modules.3"],"modules.31":["sections.4.modules.4"],"modules.32":["sections.4.modules.5"],"modules.33":["sections.5.modules.0"],"modules.34":["sections.5.modules.1"],"modules.35":["sections.5.modules.2"],"modules.36":["sections.5.modules.3"],"modules.37":["sections.5.modules.4"],"modules.38":["sections.5.modules.5"],"modules.39":["sections.5.modules.6"],"modules.40":["sections.6.modules.0"],"modules.41":["sections.6.modules.1"],"modules.42":["sections.6.modules.2"],"modules.43":["sections.6.modules.3"],"modules.44":["sections.6.modules.4"],"modules.45":["sections.6.modules.5"],"modules.46":["sections.6.modules.6"],"modules.47":["sections.7.modules.0"],"modules.48":["sections.7.modules.1"],"modules.49":["sections.7.modules.2"],"modules.50":["sections.7.modules.3"],"modules.51":["sections.7.modules.4"],"modules.52":["sections.7.modules.5"],"modules.53":["sections.8.modules.0"],"modules.54":["sections.8.modules.1"],"modules.55":["sections.8.modules.2"],"modules.56":["sections.8.modules.3"],"modules.57":["sections.8.modules.4"],"modules.58":["sections.8.modules.5"],"modules.59":["sections.8.modules.6"],"modules.60":["sections.9.modules.0"],"modules.61":["sections.9.modules.1"],"modules.62":["sections.9.modules.2"],"modules.63":["sections.9.modules.3"],"modules.64":["sections.9.modules.4"],"modules.65":["sections.9.modules.5"],"modules.66":["sections.10.modules.0"],"modules.67":["sections.10.modules.1"],"modules.68":["sections.10.modules.2"],"modules.69":["sections.10.modules.3"],"modules.70":["sections.10.modules.4"],"modules.71":["sections.10.modules.5"],"modules.72":["sections.11.modules.0"],"modules.73":["sections.11.modules.1"],"modules.74":["sections.11.modules.2"],"modules.75":["sections.11.modules.3"],"modules.76":["sections.11.modules.4"],"modules.77":["sections.11.modules.5"],"modules.78":["sections.12.modules.0"],"modules.79":["sections.12.modules.1"],"modules.80":["sections.12.modules.2"],"modules.81":["sections.12.modules.3"],"modules.82":["sections.12.modules.4"],"modules.83":["sections.12.modules.5"],"modules.84":["sections.13.modules.0"],"modules.85":["sections.13.modules.1"],"modules.86":["sections.13.modules.2"],"modules.87":["sections.13.modules.3"],"modules.88":["sections.13.modules.4"],"modules.89":["sections.13.modules.5"],"modules.90":["sections.14.modules.0"],"modules.91":["sections.14.modules.1"],"modules.92":["sections.14.modules.2"],"modules.93":["sections.14.modules.3"],"modules.94":["sections.14.modules.4"],"modules.95":["sections.14.modules.5"],"modules.96":["sections.14.modules.6"],"modules.97":["sections.14.modules.7"],"modules.98":["sections.15.modules.0"],"modules.99":["sections.15.modules.1"],"modules.100":["sections.15.modules.2"],"modules.101":["sections.15.modules.3"],"modules.102":["sections.15.modules.4"],"modules.103":["sections.15.modules.5"],"modules.104":["sections.16.modules.0"],"modules.105":["sections.16.modules.1"],"modules.106":["sections.16.modules.2"],"modules.107":["sections.16.modules.3"],"modules.108":["sections.16.modules.4"],"modules.109":["sections.16.modules.5"],"modules.110":["sections.16.modules.6"],"modules.111":["sections.17.modules.0"],"modules.112":["sections.17.modules.1"],"modules.113":["sections.17.modules.2"],"modules.114":["sections.17.modules.3"],"modules.115":["sections.17.modules.4"],"modules.116":["sections.17.modules.5"],"modules.117":["sections.17.modules.6"],"modules.118":["sections.17.modules.7"],"modules.119":["sections.18.modules.0"],"modules.120":["sections.18.modules.1"],"modules.121":["sections.18.modules.2"],"modules.122":["sections.18.modules.3"],"modules.123":["sections.18.modules.4"],"modules.124":["sections.18.modules.5"],"modules.125":["sections.19.modules.0"],"modules.126":["sections.19.modules.1"],"modules.127":["sections.19.modules.2"],"modules.128":["sections.19.modules.3"],"modules.129":["sections.19.modules.4"],"modules.130":["sections.19.modules.5"],"modules.131":["sections.19.modules.6"],"modules.132":["sections.20.modules.0"],"modules.133":["sections.20.modules.1"],"modules.134":["sections.20.modules.2"],"modules.135":["sections.20.modules.3"],"modules.136":["sections.20.modules.4"],"modules.137":["sections.20.modules.5"],"modules.138":["sections.20.modules.6"],"modules.139":["sections.20.modules.7"],"modules.140":["sections.21.modules.0"],"modules.141":["sections.21.modules.1"],"modules.142":["sections.21.modules.2"],"modules.143":["sections.21.modules.3"],"modules.144":["sections.21.modules.4"],"modules.145":["sections.21.modules.5"],"modules.146":["sections.22.modules.0"],"modules.147":["sections.22.modules.1"],"modules.148":["sections.22.modules.2"],"modules.149":["sections.22.modules.3"],"modules.150":["sections.22.modules.4"],"modules.151":["sections.22.modules.5"],"modules.152":["sections.22.modules.6"],"modules.153":["sections.23.modules.0"],"modules.154":["sections.23.modules.1"],"modules.155":["sections.23.modules.2"],"modules.156":["sections.23.modules.3"],"modules.157":["sections.23.modules.4"],"modules.158":["sections.23.modules.5"],"modules.159":["sections.23.modules.6"],"modules.160":["sections.23.modules.7"],"modules.161":["sections.24.modules.0"],"modules.162":["sections.24.modules.1"],"modules.163":["sections.24.modules.2"],"modules.164":["sections.24.modules.3"],"modules.165":["sections.24.modules.4"],"modules.166":["sections.24.modules.5"],"modules.167":["sections.24.modules.6"],"modules.168":["sections.25.modules.0"],"modules.169":["sections.25.modules.1"],"modules.170":["sections.25.modules.2"],"modules.171":["sections.25.modules.3"],"modules.172":["sections.25.modules.4"],"modules.173":["sections.25.modules.5"],"modules.174":["sections.25.modules.6"],"modules.175":["sections.26.modules.0"],"modules.176":["sections.26.modules.1"],"modules.177":["sections.26.modules.2"],"modules.178":["sections.26.modules.3"],"modules.179":["sections.26.modules.4"],"modules.180":["sections.26.modules.5"],"modules.181":["sections.26.modules.6"],"modules.182":["sections.27.modules.0"],"modules.183":["sections.27.modules.1"],"modules.184":["sections.27.modules.2"],"modules.185":["sections.27.modules.3"],"modules.186":["sections.28.modules.0"],"modules.187":["sections.28.modules.1"],"modules.188":["sections.29.modules.0"],"modules.189":["sections.29.modules.1"],"modules.190":["sections.29.modules.2"],"modules.191":["sections.29.modules.3"],"modules.192":["sections.29.modules.4"],"modules.193":["sections.29.modules.5"],"modules.194":["sections.29.modules.6"],"modules.195":["sections.30.modules.0"],"modules.196":["sections.30.modules.1"],"modules.197":["sections.30.modules.2"],"modules.198":["sections.30.modules.3"],"modules.199":["sections.30.modules.4"],"modules.200":["sections.30.modules.5"],"modules.201":["sections.30.modules.6"],"modules.202":["sections.31.modules.0"],"modules.203":["sections.31.modules.1"],"modules.204":["sections.31.modules.2"],"modules.205":["sections.31.modules.3"],"modules.206":["sections.31.modules.4"],"modules.207":["sections.31.modules.5"],"modules.208":["sections.31.modules.6"],"modules.209":["sections.32.modules.0"],"modules.210":["sections.32.modules.1"],"modules.211":["sections.32.modules.2"],"modules.212":["sections.32.modules.3"],"modules.213":["sections.32.modules.4"],"modules.214":["sections.32.modules.5"],"modules.215":["sections.32.modules.6"],"modules.216":["sections.32.modules.7"],"modules.217":["sections.33.modules.0"],"modules.218":["sections.33.modules.1"],"modules.219":["sections.33.modules.2"],"modules.220":["sections.33.modules.3"],"modules.221":["sections.33.modules.4"],"modules.222":["sections.33.modules.5"],"modules.223":["sections.34.modules.0"],"modules.224":["sections.34.modules.1"],"modules.225":["sections.34.modules.2"],"modules.226":["sections.34.modules.3"],"modules.227":["sections.34.modules.4"],"modules.228":["sections.34.modules.5"],"modules.229":["sections.34.modules.6"],"modules.230":["sections.35.modules.0"],"modules.231":["sections.35.modules.1"],"modules.232":["sections.35.modules.2"],"modules.233":["sections.35.modules.3"],"modules.234":["sections.35.modules.4"],"modules.235":["sections.35.modules.5"],"modules.236":["sections.36.modules.0"],"modules.237":["sections.36.modules.1"],"modules.238":["sections.36.modules.2"],"modules.239":["sections.36.modules.3"],"modules.240":["sections.36.modules.4"],"modules.241":["sections.36.modules.5"],"modules.242":["sections.36.modules.6"],"modules.243":["sections.36.modules.7"],"modules.244":["sections.36.modules.8"],"modules.245":["sections.36.modules.9"]},"v":1}},"dataUpdateCount":1,"dataUpdatedAt":1792196631439,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningPaths","getBySlug"],{"input":{"slug":"lld-system-design"},"type":"query"}],"queryHash":"[[\"learningPaths\",\"getBySlug\"],{\"input\":{\"slug\":\"lld-system-design\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631663,"state":{"data":{"json":{"path":{"archivedAt":null,"id":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","slug":"lld-system-design","title":"Low-Level System Design","description":"Master low-level design and object-oriented design across 37 chapters and 1003+ pages.","image":null,"color":"#0EA5E9","keyTopics":["Object-oriented design","SOLID principles","Design patterns","API and persistence design","Concurrency fundamentals","Clean architecture","Testing and maintainability","LLD interview preparation"],"estimatedHours":167,"problemCount":0,"visualizerCount":0,"quizCount":0,"learningCount":1003,"difficulty":"INTERMEDIATE","idealFor":["Software developers","Backend and full-stack engineers","Interview candidates","Engineers improving design skills"],"prerequisites":["Basic programming and OOP concepts","Comfort with classes and interfaces","Familiarity with one OOP language"],"skillsGained":["Domain modeling","Class and API design","Applying SOLID effectively","Pattern selection and trade-offs","Concurrency-safe design","Maintainable code architecture"],"outcomes":["Design extensible object models","Build maintainable service components","Choose appropriate design patterns","Improve code quality and testability","Perform strongly in LLD interviews"],"overview":"This LLD learning path develops practical software design skills from object modeling to production-ready architecture decisions.\n\n**What you'll learn:**\n• OOP and UML fundamentals\n• SOLID and essential design principles\n• Creational, structural, and behavioral patterns\n• API, persistence, and caching design\n• Concurrency and resource management\n• End-to-end LLD case studies","createdAt":"2026-10-15T17:47:45.111Z","updatedAt":"2026-10-15T17:54:18.881Z","modules":[{"id":"seed_da74e17c73d4bdef48e2ebe0d48b75eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"What Is Lld","order":1,"contentType":"LEARNING","contentSlug":"what-is-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_c48df6e23317abe1aa7d89ebbd76a822","title":"Definition of Low-Level Design","order":0},{"id":"seed_b3d1a8779d86f4d06befc48e63ed12b7","title":"LLD as the Bridge Between Requirements and Code","order":1},{"id":"seed_883621a54638503b51e76c6b91f37ac5","title":"Scope of LLD: Classes, Interfaces, Methods, Interactions","order":2},{"id":"seed_018e60441576cefd008ee95324f6c752","title":"LLD as a Thinking Discipline, Not Just Documentation","order":3}]},{"id":"seed_778934f0d6849d48df17c1ad6c07e72b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld Vs Hld","order":2,"contentType":"LEARNING","contentSlug":"lld-vs-hld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_4432fe22326c42029f5fedd0ed797a29","title":"High-Level Design: System Architecture, Services, and Databases","order":0},{"id":"seed_f39f69d3e3145e30b2eaeb7ff9b603b4","title":"Low-Level Design: Classes, Objects, Methods, and Relationships","order":1},{"id":"seed_bc3847dc84c500eec3e43eda827fc17a","title":"How LLD Fits Within the Overall Design Process","order":2},{"id":"seed_9c25f773cee6aa7988593d434a3de228","title":"When to Focus on HLD vs LLD","order":3}]},{"id":"seed_95e3d95deccee4b3e3b64cac2d19f2d5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Why Lld Matters","order":3,"contentType":"LEARNING","contentSlug":"why-lld-matters","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_bf127d37e00cea5cc8f7bb686ed1f611","title":"Code Maintainability and Readability","order":0},{"id":"seed_66300ad0a1e672acea0b931e9ec58f4f","title":"Reducing Technical Debt","order":1},{"id":"seed_bd9274a155a38f68cba58dacca055ef4","title":"Enabling Team Collaboration","order":2},{"id":"seed_617e719e6c159e65f105e3012e9a525a","title":"Supporting Testing and Debugging","order":3},{"id":"seed_c55450271c0fd9519cd7cb7f528ddd6e","title":"Foundation for Refactoring","order":4}]},{"id":"seed_094de77501d4b53e2f6f06692188724f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld Mindset Thinking In Components","order":4,"contentType":"LEARNING","contentSlug":"lld-mindset-thinking-in-components","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_f95f3f996562ef23ae17a33f4c6915a6","title":"Breaking Systems into Manageable Pieces","order":0},{"id":"seed_d95ae9188172ca09218dc4aeedfe9a78","title":"Identifying Responsibilities and Boundaries","order":1},{"id":"seed_890b4d4453c0f80ae98fa5f8e347850b","title":"Thinking About Interactions Before Implementation","order":2},{"id":"seed_f89526fe0be8c85dbd2a0167a4c2eee3","title":"Balancing Flexibility with Simplicity","order":3}]},{"id":"seed_189f4cfae259fa06e7ded9a2582c6d2c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Lld In Interviews Vs Real World","order":5,"contentType":"LEARNING","contentSlug":"lld-in-interviews-vs-real-world","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_5f72e15e9a176181252c8e31ec3fbabf","title":"Interview LLD — Time-Constrained, Focused Scope","order":0},{"id":"seed_9faedd0d3d4a0107aa1717126a31f95e","title":"Real-World LLD — Iterative, Evolving, Team-Based","order":1},{"id":"seed_eb04bfd1ccf86fa00227072925ac68ff","title":"Common Interview Expectations","order":2},{"id":"seed_e1e2e17edf8006ce1df525548fe52c10","title":"Bridging Theory and Practice","order":3}]},{"id":"seed_6c846f026ab6f60428f58578dd8553a8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Prerequisites And Learning Path","order":6,"contentType":"LEARNING","contentSlug":"lld-prerequisites-and-learning-path","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_ec94603de2be05ddd1a611533e528fea","title":"Required Foundational Knowledge","order":0},{"id":"seed_de04a903659a51d571808226fa37e24f","title":"How This Curriculum Is Structured","order":1},{"id":"seed_73e4b36ab7ea38c8d3d2db06f549782c","title":"Recommended Practice Approach","order":2},{"id":"seed_c45b065326cf0e7a4d265c0ef53a1e3a","title":"Setting Expectations for Mastery","order":3}]},{"id":"seed_5f10ed873dedc742abcfabbe08d367b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"From Procedural To Oo","order":1,"contentType":"LEARNING","contentSlug":"from-procedural-to-oo","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_18b57a5ff9332d9654c1c022b7154e20","title":"The Procedural Programming Paradigm","order":0},{"id":"seed_d47995ded64209f14d2cefde4d94b540","title":"The Object-Oriented Mental Model","order":1},{"id":"seed_7f0eeddfdf2ebdce0452dd54e789c19d","title":"Why the Shift Matters for Complex Systems","order":2},{"id":"seed_f4d45a0c2fa41c7eb8fb8de7a3e1e3c5","title":"Common Pitfalls in the Transition","order":3}]},{"id":"seed_46639e27cdc7109390b7ce754380d88b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Identifying Objects In Problem Statements","order":2,"contentType":"LEARNING","contentSlug":"identifying-objects-in-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_c7301b4e41498afe1e1c015b9ea9567c","title":"Reading Requirements with an OO Lens","order":0},{"id":"seed_5c0765644fb49ad4c1ca61fb4dfab384","title":"Nouns as Potential Objects","order":1},{"id":"seed_22ad69a9722ef0d125bcb203e57cc079","title":"Verbs as Potential Methods","order":2},{"id":"seed_cc7dbc8820da8d37889deef65ffb3ad9","title":"Practicing Object Identification","order":3}]},{"id":"seed_9f5576f9b0d9e2b47c9b5dfc34604ecf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Entities Attributes Behaviors","order":3,"contentType":"LEARNING","contentSlug":"entities-attributes-behaviors","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_89030b7253aa17227931782ea20aa030","title":"Understanding Entities — The Building Blocks of Your System","order":0},{"id":"seed_6aaaf4675ed7edd3dbe606d1f9e629ff","title":"Attributes — Properties That Describe Entities","order":1},{"id":"seed_0f4cc21cfc6f42a391f9e82ec960ba9a","title":"Behaviors — Actions That Entities Perform","order":2},{"id":"seed_941a3bf41009c43ec28605da2bb27bec","title":"Distinguishing Essential from Incidental Properties","order":3}]},{"id":"seed_eb81cacfbd69c4cbc7654161a604b12e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Relationships Between Objects","order":4,"contentType":"LEARNING","contentSlug":"relationships-between-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_b09a33b54d18b0db9539bb95135e1fdf","title":"Association — Objects That Know Each Other","order":0},{"id":"seed_9fa848ce7ece5e1f36dcd8a871c7e3d8","title":"Dependency — Objects That Use Each Other","order":1},{"id":"seed_b046899ecfce047310075e003182c407","title":"Aggregation — Whole-Part with Independent Lifecycle","order":2},{"id":"seed_43bec1bf740dc344b1c8285188dcc362","title":"Composition — Whole-Part with Dependent Lifecycle","order":3}]},{"id":"seed_636bd1ad92e89db9396cd1b368eb868f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"State And Behavior Modeling","order":5,"contentType":"LEARNING","contentSlug":"state-and-behavior-modeling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_c58a4afac64f29772ea5ffb7f6c91b15","title":"Object State — The Current Values of Attributes","order":0},{"id":"seed_dd7217b863688bcb244d6c6dfa07d879","title":"State Transitions and Lifecycles","order":1},{"id":"seed_2ec6c13ce1291d97bde4a14d7018abaa","title":"Behavior as State Manipulation","order":2},{"id":"seed_efc2f7a1565497cc6459189c3a79bc2d","title":"Stateful vs Stateless Design","order":3}]},{"id":"seed_36d3d57efb9dffdd64a847a234304e2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Real World To Code Translation","order":6,"contentType":"LEARNING","contentSlug":"real-world-to-code-translation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_ca77828af368f163fa7bc7247c70bb44","title":"From Domain Concepts to Classes","order":0},{"id":"seed_09f6ddd1476e367dc4ff77460f173890","title":"Domain Language in Code — Ubiquitous Language","order":1},{"id":"seed_f9ccb3aea6892d0e43b0faf241513cd9","title":"Avoiding Implementation-Driven Design","order":2},{"id":"seed_56f8419e8e6a0ce9d9b077a65d16c3ba","title":"Validating Design Against Requirements","order":3}]},{"id":"seed_dc7beec34ee4458aee0b87574abf46d1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Why We Need Design Diagrams","order":1,"contentType":"LEARNING","contentSlug":"why-we-need-design-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_bef8cc0ad163ad2dbe98b119254a7067","title":"Communicating Complex Ideas — The Limits of Words","order":0},{"id":"seed_69831b32fd4d35d2f940385cc924fc63","title":"Design Documentation for Teams — Creating Persistent Knowledge","order":1},{"id":"seed_6e8670b5d142ee77aeab3e2bac554cf6","title":"Visual Validation of Design Decisions — Diagrams as Design Proofs","order":2},{"id":"seed_ab92577cf1ec290bd8b68fb69c30ac75","title":"Diagrams as Thinking Tools — Externalizing the Design Process","order":3}]},{"id":"seed_a1542f810360eee6eefbd9bffc15b3ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Uml Overview","order":2,"contentType":"LEARNING","contentSlug":"uml-overview","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_681d3194e2d4e9b3edfd8cc5ce71e027","title":"What is UML (Unified Modeling Language)","order":0},{"id":"seed_863f35833c4b5055e1792709e0c5c70b","title":"Brief History and Purpose of UML","order":1},{"id":"seed_6e4d4bb3f7c5e2636423bdd170be83d2","title":"UML Diagram Categories","order":2},{"id":"seed_e1c26e51aaa08732f4b0587263d7889c","title":"When to Use UML vs Informal Diagrams","order":3}]},{"id":"seed_283778a4a6c84cfa10aca570c814a281","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Class Diagrams","order":3,"contentType":"LEARNING","contentSlug":"class-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_cec6ef02b672bfc0bb64d3307b3f310a","title":"Class Notation — Name, Attributes, Methods","order":0},{"id":"seed_e4e729c2338272b037c74cc6dfe4fc47","title":"Visibility Markers — Public, Private, Protected","order":1},{"id":"seed_47f779a8c0c93f5de548ddb23a94198d","title":"Static and Abstract Notation","order":2},{"id":"seed_a586eb15d9dce0d44f6d2bfca921b690","title":"Reading and Creating Class Diagrams","order":3}]},{"id":"seed_9c69001e4a0889eaee6f2ba756e288de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Relationships In Diagrams","order":4,"contentType":"LEARNING","contentSlug":"uml-relationships","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_72d78d000a18dfadd6b03dbce111d425","title":"Association Lines and Multiplicity","order":0},{"id":"seed_491a2649e6f07dc9539d63013fc03de0","title":"Aggregation — Hollow Diamond","order":1},{"id":"seed_7b30b3344779d327f708ab24c9310256","title":"Composition — Filled Diamond","order":2},{"id":"seed_ca01bd4695944e64ed252d1c68d2ed7a","title":"Inheritance — Hollow Triangle Arrow","order":3},{"id":"seed_f516458a5180415eeb24869f18f4d83a","title":"Dependency — Dashed Arrow","order":4}]},{"id":"seed_95e6369d513b75eab5ea405d4fdb618f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Sequence Diagrams Behavior Over Time","order":5,"contentType":"LEARNING","contentSlug":"sequence-diagrams-behavior-over-time","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_303051a206bb4f36c8d133c86524a785","title":"Objects as Lifelines","order":0},{"id":"seed_d84501dee6f685fb00b523831d8df460","title":"Messages Between Objects","order":1},{"id":"seed_0727784f914737e7e3941b390aa1fe73","title":"Synchronous vs Asynchronous Calls","order":2},{"id":"seed_356bc3588ac310309fcf5372748e5e3b","title":"Return Values and Self-Calls","order":3},{"id":"seed_aae1a6c1334939101ebfd2e5df3f0792","title":"Fragments: Loops, Conditionals","order":4}]},{"id":"seed_0ed28be5ecf1baf9f05d40bac9932ca7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Use Case Diagrams","order":6,"contentType":"LEARNING","contentSlug":"use-case-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_96eb547b703183fa83a52bac941fb2a2","title":"Actors and Use Cases — The Foundation of Requirements Visualization","order":0},{"id":"seed_7a5e2fea5e50bdcd63308f655af2c3d8","title":"System Boundaries — Defining What's In and What's Out","order":1},{"id":"seed_36727a455f4171835bd147a80b3aa920","title":"Include and Extend Relationships — Modeling Use Case Dependencies","order":2},{"id":"seed_56e9b95fa367b5ccb71c351e6ef93fbf","title":"Use Cases for Requirement Gathering — From Vision to Specification","order":3}]},{"id":"seed_bf1cae02bf90d7885655b40d7756bb7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Activity State Diagrams","order":7,"contentType":"LEARNING","contentSlug":"activity-state-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_4486a71af3fe8df853aee183f0117528","title":"Activity Diagrams — Workflow and Process","order":0},{"id":"seed_277ca2c38c1b7a764b673c8eae7d09cb","title":"State Diagrams — Object Lifecycle","order":1},{"id":"seed_18d2676a3076b31ba841a66eabee3bc7","title":"When to Use Each — Choosing the Right Behavioral Diagram","order":2},{"id":"seed_ef543ebffaf8585e2493af7ee3d121d9","title":"Keeping Diagrams Simple","order":3}]},{"id":"seed_27be8950e0a7ca2b55e789d017759008","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"When To Use Which Diagram","order":8,"contentType":"LEARNING","contentSlug":"when-to-use-which-diagram","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_d9961c18612af89f35442841884ebc95","title":"Class Diagrams for Structure","order":0},{"id":"seed_4b068dede72ae9a7d1dacba70d3c54d9","title":"Sequence Diagrams for Interactions","order":1},{"id":"seed_fe5aab26b1032535b4ab82240df9bea6","title":"Use Case Diagrams for Requirements","order":2},{"id":"seed_5b405552e51500938300d302697920f4","title":"Matching Diagram Type to Communication Goal","order":3}]},{"id":"seed_166823daca2d18635c97caefb96c2e41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"What Is Class What Is Object","order":1,"contentType":"LEARNING","contentSlug":"what-is-class-what-is-object","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_fc2c226fc82cd554339a5404a71ddc9d","title":"Class as a Blueprint","order":0},{"id":"seed_56dc1b06ea1cde7e4f209d3231806919","title":"Object as an Instance","order":1},{"id":"seed_ba76eda72fe96e1835841a3089bf6815","title":"Class vs Object Relationship","order":2},{"id":"seed_6026408c24da1c65bf9e947e326a2d75","title":"Multiple Objects from One Class","order":3}]},{"id":"seed_322634ed40774e4a77015e0433179d06","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Attributes And Methods","order":2,"contentType":"LEARNING","contentSlug":"attributes-and-methods","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_169f9061cf68d8b2c30ef8d9eaaf3a9a","title":"Attributes — Object State","order":0},{"id":"seed_20d794aae3ab856d3914c5eb17618104","title":"Methods — Object Behavior","order":1},{"id":"seed_abbee12f38d2642d81d534f074eb669e","title":"Designing Meaningful Attributes","order":2},{"id":"seed_0c5d688f46c8f73baf2fcd97f6c16c57","title":"Designing Cohesive Methods","order":3}]},{"id":"seed_f6705dbb6228a71e08a4ad4187941ec9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Constructors And Object Lifecycle","order":3,"contentType":"LEARNING","contentSlug":"constructors-and-object-lifecycle","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.189Z","pages":[{"id":"seed_ba117750442396942c2800b2bb8428ed","title":"Constructor Purpose and Types","order":0},{"id":"seed_20f8631269877483e468d43d1d112844","title":"Default vs Parameterized Constructors","order":1},{"id":"seed_9c70567c02bcec67297a79565ff2e236","title":"Object Initialization Best Practices","order":2},{"id":"seed_870da57ff62d8f94cbdac4470c01ad7b","title":"Object Destruction and Cleanup","order":3}]},{"id":"seed_6b800f95d9a444455534fee651269739","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Access Modifiers Visibility","order":4,"contentType":"LEARNING","contentSlug":"access-modifiers-visibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_c728d8d1fac7720b9efc0d31e638b404","title":"Public — Accessible Everywhere","order":0},{"id":"seed_f8ae7bcda134f5a0fb25e4a862da14b8","title":"Private — Accessible Within Class Only","order":1},{"id":"seed_3fb4d2c61fe7a664930f3996523e349f","title":"Protected — Accessible in Inheritance Hierarchy","order":2},{"id":"seed_a18612169625872647e37b43c37645e4","title":"Package/Internal — Language-Specific Access","order":3}]},{"id":"seed_dcaea37542bb34f9c16f4c110d57ffb4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Static Vs Instance Members","order":5,"contentType":"LEARNING","contentSlug":"static-vs-instance-members","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_ce19642c5fbbd4a38672062b6d007991","title":"Instance Members — Per-Object State and Behavior","order":0},{"id":"seed_8026a08069fc32c5e71181544ba16951","title":"Static Members — Per-Class State and Behavior","order":1},{"id":"seed_fadaacd171255262fd3959b7f2b68ceb","title":"When to Use Static — Design Criteria and Patterns","order":2},{"id":"seed_5d61f9f8dc3c39b9681a6d7c15567578","title":"Static Method Limitations — Constraints and Design Implications","order":3}]},{"id":"seed_a3e5332d704341d5c3a9fb945a5378f6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Object Identity Equality Hashing","order":6,"contentType":"LEARNING","contentSlug":"object-identity-equality-hashing","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_cfcfd464c9769a0cfbf7e9a0fbc1924a","title":"Object Identity — The Concept of Same Memory Location","order":0},{"id":"seed_cdf5cccf20770591cb728d97b24979cc","title":"Object Equality — The Concept of Same Value","order":1},{"id":"seed_ebe3740423d293132b965f808120e5c0","title":"Implementing equals() and hashCode()","order":2},{"id":"seed_ad053f163a5b2d0d237b2b99da9f09e4","title":"Consistency Requirements","order":3}]},{"id":"seed_474d8467f9840e66de7ddcae3dad112d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Designing Clean Classes","order":7,"contentType":"LEARNING","contentSlug":"designing-clean-classes","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_0cee791f6f17e0ac458e5cb7f3398cb7","title":"Single Purpose Classes: The Foundation of Clean Design","order":0},{"id":"seed_501604165b35539e92bc0305b9b0cbdb","title":"Meaningful Names: The Art of Intention-Revealing Class Names","order":1},{"id":"seed_6da660280f89a883604136f9c174b575","title":"Appropriate Size: Finding the Right Balance for Class Design","order":2},{"id":"seed_9a45c3bf2b89bcb24dbafcfcb8f348b5","title":"Cohesive Members: Creating Unity Within Classes","order":3},{"id":"seed_b5bee481b662dd6954120bfc6bb9ce7f","title":"Class Design Checklist: A Practical Guide to Clean Classes","order":4}]},{"id":"seed_bb27ea6e1969ed891d9e206258f88ad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"What Is Encapsulation","order":1,"contentType":"LEARNING","contentSlug":"what-is-encapsulation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_d29cddc38f2e3188e4e40f1de218d667","title":"Definition of Encapsulation","order":0},{"id":"seed_0fab2b39c459f731e172020ee540a2fa","title":"Bundling Data and Behavior","order":1},{"id":"seed_4b9ec4ef3e218b151b4bf0a06f0ea6db","title":"Hiding Implementation Details","order":2},{"id":"seed_690bc9dbef61b800768a09dd7137eada","title":"Why Encapsulation Matters","order":3}]},{"id":"seed_9b27cac6c031352578845b4bc3bbef84","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Data Hiding Principles","order":2,"contentType":"LEARNING","contentSlug":"data-hiding-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_30c145b282cbfe632c307eafeee2b015","title":"Private Fields, Public Interface","order":0},{"id":"seed_b514f679ec7f70f22a7c06723d310ee3","title":"Controlling Access to State","order":1},{"id":"seed_3280717d50694844da4a17bec59fc040","title":"Preventing Invalid State","order":2},{"id":"seed_8911e2a2b71f2c3b62c5160ac53714ea","title":"Encapsulation as Protection","order":3}]},{"id":"seed_6a3cd03202849aa2f73df3c833338375","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Getters And Setters When And Why","order":3,"contentType":"LEARNING","contentSlug":"getters-and-setters-when-and-why","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_f6b3600598c234ff1a1644d7dc800af4","title":"Purpose of Accessors","order":0},{"id":"seed_560bbf33a5dcc54beddae9d1bbfb61c9","title":"When to Use Getters","order":1},{"id":"seed_7863949d6bcb8001003e8f105bea501c","title":"When to Avoid Setters","order":2},{"id":"seed_c08ebdcf81b0698f083f217e1e760fcd","title":"Tell, Don't Ask Principle Introduction","order":3}]},{"id":"seed_6c546cfca78f519dd607364bc8c14bf0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Immutable Objects","order":4,"contentType":"LEARNING","contentSlug":"immutable-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_bd4ce78e38e24222020cbf106efb0670","title":"What Is Immutability","order":0},{"id":"seed_60e81025665a0d9c9757fb517648d3bc","title":"Benefits: Thread Safety, Simplicity, and Beyond","order":1},{"id":"seed_def54c8484877c9c73eea7d2be1523f5","title":"Designing Immutable Classes","order":2},{"id":"seed_2fed94761ea74b0ec63608b25fe66028","title":"Immutability Trade-offs","order":3}]},{"id":"seed_34de1762027e2db0acb12ca78bb5c2cc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Defensive Copying","order":5,"contentType":"LEARNING","contentSlug":"defensive-copying","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_3cbfe2a6db77692915a3f13fba322a94","title":"The Problem of Mutable References","order":0},{"id":"seed_d43b50acc1269b5b270794837b0495d6","title":"Defensive Copy on Input","order":1},{"id":"seed_d2e3f3c98df713c217d414df0b6e2a13","title":"Defensive Copy on Output","order":2},{"id":"seed_182c2e2bf21b0683f74328febc5f5671","title":"When Defensive Copying Is Necessary","order":3}]},{"id":"seed_60b4909c83f766a2dbf0c4dd01ad31bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Encapsulation In Practice","order":6,"contentType":"LEARNING","contentSlug":"encapsulation-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_27cd0fdb61a3d2d9501eba6a0cda27b5","title":"Encapsulation Code Examples","order":0},{"id":"seed_561c5c7350fa1d86171fdb3b0c4556e7","title":"Common Encapsulation Mistakes","order":1},{"id":"seed_e726b2df6671788683028384ce675ea4","title":"Refactoring for Better Encapsulation","order":2},{"id":"seed_ab70cd0f4d49638a1910a1879262889e","title":"Encapsulation Checklist","order":3}]},{"id":"seed_47dc919f28df10d59a5d56f472412545","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"What Is Inheritance","order":1,"contentType":"LEARNING","contentSlug":"what-is-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_1d667d669af79cae333db6b53f7578dd","title":"Definition of Inheritance","order":0},{"id":"seed_804eb39a4fb2072ff86c5cbc267d7801","title":"Parent/Child (Superclass/Subclass) Relationship","order":1},{"id":"seed_2190beeb3b547b7dfc8f417dbfbcaaa8","title":"Inheriting Attributes and Methods","order":2},{"id":"seed_f82270a7dd1762af5f7502507f397e41","title":"Inheritance as Specialization","order":3}]},{"id":"seed_79f6c0639dbfeb8400a38ce23f02a799","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Is A Relationship","order":2,"contentType":"LEARNING","contentSlug":"is-a-relationship","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_c023b2a8b857791817a588bdc27de17a","title":"When Inheritance Is Appropriate","order":0},{"id":"seed_54c53946ea2999d269d911dcf5be5881","title":"IS-A Test for Inheritance","order":1},{"id":"seed_aa8598aee31d62bf77a035273ead01a8","title":"Common Inheritance Mistakes","order":2},{"id":"seed_867366057e79a5c824d8825efc4c811c","title":"Inheritance for Behavior, Not Just Code Reuse","order":3}]},{"id":"seed_a2d0a67913ddadcd3ad88d6d6c36eab5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Method Overriding","order":3,"contentType":"LEARNING","contentSlug":"method-overriding","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_18497f8924218b1eed0736108d6caca9","title":"Redefining Inherited Methods","order":0},{"id":"seed_7eccda0d043e1bf7725a6fca154990c6","title":"Override Rules and Constraints","order":1},{"id":"seed_fa65c0cf3f9ecd6ec19ed9cb8546da75","title":"Calling Parent Method with Super","order":2},{"id":"seed_b3a915573bac476e280b10d738764c7e","title":"Covariant Return Types","order":3}]},{"id":"seed_d85594dc748eccdbea4005e2f40df194","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Super Keyword Chain Calls","order":4,"contentType":"LEARNING","contentSlug":"super-keyword-chain-calls","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_4b8874f866a3929f85c2b9e112bcaf83","title":"Accessing Parent Class Members","order":0},{"id":"seed_1439c87ac44c91cf4fdc67941a8178bb","title":"Constructor Chaining","order":1},{"id":"seed_ddddd158ed59c4052b114680e5241478","title":"Method Chaining with super","order":2},{"id":"seed_fbdbc2bdb20aa2141aefb7b60d221077","title":"Initialization Order","order":3}]},{"id":"seed_97468a185509f26eb4d956c2798f1bf1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Inheritance Hierarchies Design","order":5,"contentType":"LEARNING","contentSlug":"inheritance-hierarchies-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_e9e624277b21a11b03e06bfd14c55b47","title":"Shallow vs Deep Hierarchies","order":0},{"id":"seed_632856c6a2292a0f3b70ff06d92d1832","title":"Single vs Multiple Inheritance","order":1},{"id":"seed_1f36468260097bd7699a5cfd22ef8162","title":"The Diamond Problem","order":2},{"id":"seed_f3ba082c9998ce5287dd3387c5aae5c3","title":"Designing Inheritance Hierarchies","order":3}]},{"id":"seed_9bdca43d2315b271e35a2ef8e395b55d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"When Inheritance Goes Wrong","order":6,"contentType":"LEARNING","contentSlug":"when-inheritance-goes-wrong","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_72ae53d7c87f48e47989ce1e3ad91405","title":"The Fragile Base Class Problem","order":0},{"id":"seed_bcbc8884f1014bbdcb4f41b8fc02922a","title":"Breaking Encapsulation Through Inheritance","order":1},{"id":"seed_6dc01c18b269f90ede7cc768b3a31344","title":"Rigid Hierarchies — The Inflexibility Problem","order":2},{"id":"seed_96c71c3cf98b418740199eda65c83978","title":"Signs of Inheritance Misuse — Recognizing Anti-patterns","order":3}]},{"id":"seed_b7cd866ae2fc8c3008e94a6da4e735c5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Abstract Classes","order":7,"contentType":"LEARNING","contentSlug":"abstract-classes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_e18188f2bce7034e8c24ee73ade05c71","title":"What Is an Abstract Class","order":0},{"id":"seed_471d0110bccfe83ae4455a24cb2ccaba","title":"Abstract Methods — Contracts Without Implementation","order":1},{"id":"seed_db3d2f18ce956322ee17fe761f50cd0e","title":"When to Use Abstract Classes","order":2},{"id":"seed_02e13691af54a75d49a98d3fe8fad1de","title":"Abstract Class vs Interface — The Critical Distinction","order":3}]},{"id":"seed_4e626fb84a410929e4cb3ed05baaad0a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"What Is Polymorphism","order":1,"contentType":"LEARNING","contentSlug":"what-is-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_fc5c3aaf9cfc7b69c0d6c0338ef65618","title":"Definition of Polymorphism — Many Forms","order":0},{"id":"seed_3d2cc5adce0c990376c8ef90586d65a0","title":"Polymorphism as Flexibility Enabler","order":1},{"id":"seed_620de0e66fa1282d4ba42d8109710372","title":"Types of Polymorphism","order":2},{"id":"seed_0434442dbe6801022982f71d8d91337e","title":"Why Polymorphism Matters","order":3}]},{"id":"seed_dedd248652f91e3dcb7f27d95d7a5e7f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Compile Time Vs Runtime Polymorphism","order":2,"contentType":"LEARNING","contentSlug":"compile-time-vs-runtime-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_9a34cccf37de090acf9243188b51ab4b","title":"Static (Compile-Time) Polymorphism","order":0},{"id":"seed_0b6b3af16965fce38f299f202f874045","title":"Dynamic (Runtime) Polymorphism","order":1},{"id":"seed_7dca96fe2bd4e402db653fa2f5e401d2","title":"How the Compiler/Runtime Resolves Calls","order":2},{"id":"seed_f3fd874e7d8760ef4dfec6a4e2399abe","title":"Performance Considerations","order":3}]},{"id":"seed_a3ed79c43d060af220f5074a8150a9e1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overloading","order":3,"contentType":"LEARNING","contentSlug":"method-overloading","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_fa056f1c0e3b510a618334bd1ac693b7","title":"Same Name, Different Parameters","order":0},{"id":"seed_748dd98cb5f59f78b655f2bd7e5e3b42","title":"Overloading Rules","order":1},{"id":"seed_18f3f669d0fbf8ae9c2b4741752ba931","title":"When to Use Overloading","order":2},{"id":"seed_ba2a8a024ea8eaa76735dcd5b674ee0d","title":"Overloading Pitfalls","order":3}]},{"id":"seed_da3d93f57df0f222a390ae11845b960f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overriding Revisited","order":4,"contentType":"LEARNING","contentSlug":"method-overriding-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_81ca3cfed422a38fdea5fdb70d3d30cf","title":"Overriding for Polymorphic Behavior","order":0},{"id":"seed_2797d134669e2d4290790991125a6bf3","title":"Virtual Method Dispatch","order":1},{"id":"seed_c7b2381519f4839937615cca8f2950f9","title":"Override Annotations","order":2},{"id":"seed_0c8160aace49bbb5d67565a4171f190b","title":"Overriding and Liskov Substitution Preview","order":3}]},{"id":"seed_71f77ac4a1f0c804e293fb081918cf02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Through Interfaces","order":5,"contentType":"LEARNING","contentSlug":"polymorphism-through-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_3ec72fc5f83d6db3429da7f2df29426f","title":"Interfaces as Contracts","order":0},{"id":"seed_d4af8b79776e19f446a746c339c89993","title":"Implementing Multiple Interfaces","order":1},{"id":"seed_4e0928c3d7bf493b00798e38c4889427","title":"Interface Polymorphism Examples","order":2},{"id":"seed_de1f94fd4f5f95b6fe2201f4629aea7b","title":"Interfaces vs Abstract Classes","order":3}]},{"id":"seed_168e03dd8b559d363713e2851dd8c0eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Programming To Interfaces","order":6,"contentType":"LEARNING","contentSlug":"programming-to-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_1c3c89548d86dab1d732393847bc8640","title":"Depending on Abstractions","order":0},{"id":"seed_f6bdca46ac843d3178395522f6c19df9","title":"Flexibility Through Interfaces","order":1},{"id":"seed_78bbd6556d37a312ac399e5896b13c86","title":"Reducing Coupling","order":2},{"id":"seed_af353954d43186ab66cc6ac6751f3cce","title":"Interface-Based Design","order":3}]},{"id":"seed_07ce71b316ac60e58a6c1e713d498fc9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Patterns Practice","order":7,"contentType":"LEARNING","contentSlug":"polymorphism-patterns-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.190Z","pages":[{"id":"seed_71fa87b4f719d41c7b7f50be5b3e06ec","title":"Factory Methods Using Polymorphism","order":0},{"id":"seed_c8b825629421d40c31d8c9db1efb151d","title":"Strategy Using Polymorphism","order":1},{"id":"seed_ea00c313c75f4ab3ab6bdfc593a96f1d","title":"Polymorphic Collections","order":2},{"id":"seed_e8f4278d53c329d3c284a163c3788359","title":"Real-World Polymorphism Examples","order":3}]},{"id":"seed_ab5f84de0eac1b05fd85268689f30bcc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"What Is Abstraction","order":1,"contentType":"LEARNING","contentSlug":"what-is-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-15T17:54:19.191Z","pages":[{"id":"seed_caf4df588be677bdcdd899cb77b36108","title":"Definition of Abstraction","order":0},{"id":"seed_bc985f8375c20d94863a1ac8371e2be9","title":"Abstraction as Simplification","order":1},{"id":"seed_c8cb83886f64b9148b3ad6897a12ce56","title":"Abstraction Levels","order":2},{"id":"seed_64773c29c70c8fed2fa9e9622dc480e1","title":"Abstraction vs Encapsulation","order":3}]},{"id":"seed_5fb5b497f96b7fbc6bb53b64300a0ea6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstract Classes Vs Interfaces","order":2,"contentType":"LEARNING","contentSlug":"abstract-classes-vs-interfaces","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.191Z","pages":[{"id":"seed_e6be1e287fb6d80a8a23e977ffbc6790","title":"Abstract Class — Partial Implementation","order":0},{"id":"seed_7fbda89f6593f95bdba8c72ef52d1636","title":"Interface — Pure Contract","order":1},{"id":"seed_55e1769af489f0af2e9e88752ce5ab74","title":"When to Use Abstract Classes","order":2},{"id":"seed_b3298b8db41336b5e488682d2f11cf47","title":"When to Use Interfaces","order":3},{"id":"seed_81ac09f0c6fe9c20ebb37d00449c0912","title":"Modern Interface Features — Default Methods","order":4}]},{"id":"seed_9262b09d5fb81fcb4b3f9fb7553ebfd1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Designing For Abstraction","order":3,"contentType":"LEARNING","contentSlug":"designing-for-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_bbde393b4fc534c28c17ba4431ea4bd8","title":"Identifying Abstraction Boundaries","order":0},{"id":"seed_30b569a974cd7e271b73ebf8c5d445bb","title":"Hiding Implementation Details","order":1},{"id":"seed_b37852eb66de57fb868ed5a343e6cd61","title":"Stable Interfaces, Flexible Implementations","order":2},{"id":"seed_c5dd09d3351beeb4866958bc7fcb2db1","title":"Abstraction in Layered Design","order":3}]},{"id":"seed_49c0f381a40c7f1881a5c8eaefe09fe1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstraction Levels In System Design","order":4,"contentType":"LEARNING","contentSlug":"abstraction-levels-in-system-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_f30ba8f56a7f8c35f891ebf4abb6d836","title":"High-Level Abstractions","order":0},{"id":"seed_7cf5cd1f8350fa5bdd3099ebd1f9ecb2","title":"Low-Level Abstractions","order":1},{"id":"seed_e8eac5f29d91ed0c26838517f33caf2b","title":"Leaky Abstractions","order":2},{"id":"seed_77714050ecdd4ec5599150ac2e1de80a","title":"Abstraction Trade-offs","order":3}]},{"id":"seed_ca93cf0151c8626319950a591901b385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"The Cost Of Wrong Abstractions","order":5,"contentType":"LEARNING","contentSlug":"cost-of-wrong-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_608a2efe0fb9806bedcab55551f23e78","title":"Over-Abstraction — When Abstractions Become Obstacles","order":0},{"id":"seed_d72bffd92d0badb5d2eebdd251b1b9d9","title":"Under-Abstraction — The Hidden Tax of Concrete Code","order":1},{"id":"seed_f866f8d9738f5ad67ae43df40b300772","title":"Premature Abstraction — The Timing Problem","order":2},{"id":"seed_08ffacb04e0576110c36d0d576bd9c89","title":"Signs of Wrong Abstraction — A Diagnostic Framework","order":3}]},{"id":"seed_b06442dfc12620e36515fae550b9e224","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Refactoring Toward Better Abstractions","order":6,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_10a0eb8b0c7e459f857e93c4598e7e64","title":"Identifying Abstraction Opportunities","order":0},{"id":"seed_a5ee2dd6d1c01c538aeb222ec5656768","title":"Extracting Interfaces","order":1},{"id":"seed_96aa082ed0b4bf8401f7a5775219eb66","title":"Introducing Abstract Classes","order":2},{"id":"seed_94d9824eb8bb276f34e968148a75268b","title":"Iterative Abstraction Improvement","order":3}]},{"id":"seed_2a008b9deb6fece573c136f5bf4bc3f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Revisiting Inheritance Problems","order":1,"contentType":"LEARNING","contentSlug":"revisiting-inheritance-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_0c970ec7979185a4d89f64136a43e44a","title":"Tight Coupling in Inheritance","order":0},{"id":"seed_b592c5a0d5a6bf70f95fb7b94a8f5389","title":"Fragile Base Class Revisited","order":1},{"id":"seed_27b98fc9f6ba38c48529cde0e0397013","title":"Inheritance Hierarchy Rigidity","order":2},{"id":"seed_191d4f4e125a88ce8fe1badbdb84f18c","title":"The Need for Alternatives","order":3}]},{"id":"seed_a4250aceb61207a618622e21034646ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"What Is Composition","order":2,"contentType":"LEARNING","contentSlug":"what-is-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_9e342f86de5042679f7d41bc43815967","title":"Definition of Composition","order":0},{"id":"seed_8038d2708ee1fb0bd6c8e3b82ed5af35","title":"Objects Containing Other Objects","order":1},{"id":"seed_9e69cd3176c5dabed70049f831f404e7","title":"Building Complex Objects from Simple Ones","order":2},{"id":"seed_f43e8a69b52269a75283b2aac350a078","title":"Composition as Assembly","order":3}]},{"id":"seed_78c3a03818aca688523d67eda9903eee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Has A Vs Is A Relationships","order":3,"contentType":"LEARNING","contentSlug":"has-a-vs-is-a-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_cfc051195a49c79a75119dfe161a06da","title":"IS-A — The Inheritance Relationship","order":0},{"id":"seed_f3207331f58ed816de25721f851af605","title":"HAS-A — The Composition Relationship","order":1},{"id":"seed_da5266231dd65ae36a46533e622604cc","title":"Testing for the Right Relationship","order":2},{"id":"seed_7558763ddda92b640797d4eb58b95f67","title":"Common Relationship Mistakes","order":3}]},{"id":"seed_eff66edfca8ce63a1493cbe8b5ecdfe4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Favor Composition Over Inheritance","order":4,"contentType":"LEARNING","contentSlug":"favor-composition-over-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_e26fb6e0f2ae0e42f73782b2c51d0f03","title":"The 'Favor Composition Over Inheritance' Principle Explained","order":0},{"id":"seed_9622520d88288e05362b4ffe61c4679d","title":"Why Composition is Often Preferred","order":1},{"id":"seed_c761cd316a717f922d10233caa32e9ea","title":"Flexibility Benefits of Composition","order":2},{"id":"seed_9a2bf0377f4140145b310ec294d856d1","title":"When This Principle Doesn't Apply","order":3}]},{"id":"seed_e4e090e2eadc2591c0fbed46b19d00de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Delegation Pattern","order":5,"contentType":"LEARNING","contentSlug":"delegation-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_38796ad8fc2d31a89ebf468826271618","title":"What Is Delegation?","order":0},{"id":"seed_add99eee330ca70312d207504d75208f","title":"Forwarding Requests to Contained Objects","order":1},{"id":"seed_e74c52933c1eb8dffbfc20051c53765f","title":"Delegation vs Inheritance","order":2},{"id":"seed_ca907f310533aed5f9888cf3165bc83e","title":"Implementing Delegation","order":3}]},{"id":"seed_9b2362b64a55d7fae18d22fe9ad7b405","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"When To Use Inheritance Vs Composition","order":6,"contentType":"LEARNING","contentSlug":"when-to-use-inheritance-vs-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_71335f779ff060b50748664349a944f0","title":"Decision Framework","order":0},{"id":"seed_501eb899233fd101ab12ce7076c21832","title":"Inheritance-Appropriate Scenarios","order":1},{"id":"seed_86d5e472b44d1dcb0af227a44097c686","title":"Composition-Appropriate Scenarios","order":2},{"id":"seed_a0640f9515058305c6a2b02420c491f0","title":"Hybrid Approaches","order":3}]},{"id":"seed_157e6272dfce32e59c5c821cdb1412f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Refactoring From Inheritance To Composition","order":7,"contentType":"LEARNING","contentSlug":"refactoring-from-inheritance-to-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_6fa54df4e0b4add5e83af0d1942425ab","title":"Identifying Refactoring Candidates","order":0},{"id":"seed_ca036b9eccfbaab42b654cf9740e4c9a","title":"Step-by-step Refactoring Process","order":1},{"id":"seed_4ee3b5504f4eaf1f57964d22ce08e687","title":"Maintaining Behavior During Refactoring","order":2},{"id":"seed_0e8b84ae29a5e9096170ae81ac74dd54","title":"Testing the Refactored Design","order":3}]},{"id":"seed_642acb350127ba73e8e2b2c93d70d8d6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Is Srp","order":1,"contentType":"LEARNING","contentSlug":"what-is-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_3ebd88a095c0aaf8d44f4f83877f84b2","title":"Definition — A Class Should Have One Reason to Change","order":0},{"id":"seed_1b90dd8696b5fb113b016f6da7be0624","title":"Uncle Bob's Formulation","order":1},{"id":"seed_27a010638576122c2ad9d081be6d2752","title":"SRP as the Foundation of Good Design","order":2},{"id":"seed_1ad422e35c30b7851744a8865011d803","title":"Why SRP Matters for Maintainability","order":3}]},{"id":"seed_da8bfe459585ccdf2374cb7147c5c1b8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Defining Responsibility","order":2,"contentType":"LEARNING","contentSlug":"defining-responsibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_5bd1c0b37c342e12654766b005c666da","title":"What Constitutes a Responsibility","order":0},{"id":"seed_9c36454751be336c2fe57bcb2fa90554","title":"Actor-Based Responsibility Definition","order":1},{"id":"seed_d28c7415ea2df6e4167284d91ef68556","title":"Cohesion and Responsibility","order":2},{"id":"seed_8ddab2abe5e470287a22ca5c835a3535","title":"Common Responsibility Boundaries","order":3}]},{"id":"seed_9d0b3831054181d4a0c5f6f87f1bc2d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Identifying Srp Violations","order":3,"contentType":"LEARNING","contentSlug":"identifying-srp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_50a1c3da45ba85d5dc05f56b5698ddd6","title":"Signs of SRP Violation: Too Many Reasons to Change","order":0},{"id":"seed_b5e1419a5096dbea02f1fd560a9b4bf5","title":"Large Classes with Many Methods","order":1},{"id":"seed_a52ec8372dee9b1c19ca94b58e297df8","title":"Methods That Don't Use Most Class Fields","order":2},{"id":"seed_f688158d6608fbe565fef2bd6396e297","title":"God Classes and Feature Envy","order":3}]},{"id":"seed_a9ef89f46494ff96a73afe97953cae93","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Refactoring For Srp","order":4,"contentType":"LEARNING","contentSlug":"refactoring-for-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_8f79ffb2a60e54f6f30c52074f1c645f","title":"Extracting Classes","order":0},{"id":"seed_f875d37f4c710233f07fe2fc9ac712ed","title":"Splitting Responsibilities","order":1},{"id":"seed_dd4e3efc25f1e93cd2819a3d2a96d0bb","title":"Maintaining Cohesion After Split","order":2},{"id":"seed_c4e160781275f999322711933cd514b9","title":"Step-by-Step SRP Refactoring","order":3}]},{"id":"seed_c7bedc6b619c7ee1c77f17f8e8358229","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Srp At Different Levels","order":5,"contentType":"LEARNING","contentSlug":"srp-at-different-levels","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_4835e5438b3ad6ddb9bbdf1d6ef1d832","title":"SRP for Classes — The Foundation of Responsibility","order":0},{"id":"seed_12c1502632e03914af702fdac5639f39","title":"SRP for Methods — Focused Functions","order":1},{"id":"seed_94d5feac64b79f32bb0bec359c6e6e6d","title":"SRP for Modules and Packages — Organizing the Codebase","order":2},{"id":"seed_174bc92b8c6dbf7e5d0b9aa9bf4379ad","title":"SRP at the Architecture Level — Services, Subsystems, and Boundaries","order":3}]},{"id":"seed_95bfe849f9ddcc6c0076426076969a2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Common Srp Misconceptions","order":6,"contentType":"LEARNING","contentSlug":"common-srp-misconceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_ce57f5f22da5b0778af572c25b1155cd","title":"SRP Doesn't Mean One Method Per Class","order":0},{"id":"seed_03b9bee343e3a06b705db85bc3f15cdd","title":"SRP Doesn't Mean Tiny Classes Everywhere","order":1},{"id":"seed_7f15016067791681dc42810a4a1b0b3c","title":"Balancing SRP with Pragmatism","order":2},{"id":"seed_e191a0eb63d8135596639c2a60e4789d","title":"When \"Violations\" Are Acceptable","order":3}]},{"id":"seed_9415ae0a8779278d688db261c1c4109a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"What Is Ocp","order":1,"contentType":"LEARNING","contentSlug":"what-is-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_61be7ee6826d19ac28d71209f36a5f41","title":"The Open/Closed Principle Defined","order":0},{"id":"seed_29fe834b22e6f885f029484103cf8bc8","title":"Bertrand Meyer's Original Formulation","order":1},{"id":"seed_09878a84e522a1c565f7ec08fa07fbf6","title":"Why Modification Is Risky","order":2},{"id":"seed_1495a3a4faf897eeca70b6965cf4c3a8","title":"Extension as Safe Evolution","order":3}]},{"id":"seed_a4b65bfd658b5c0a8f6f383f078a35c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Open For Extension Closed For Modification","order":2,"contentType":"LEARNING","contentSlug":"open-for-extension-closed-for-modification","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_e4608229e31a9b565029dfec1379a9da","title":"What 'Open' Means — Understanding Extension Points","order":0},{"id":"seed_b5aae84e3ca483b81f4677f7f9b2bdf9","title":"What 'Closed' Means — The Fortress of Stability","order":1},{"id":"seed_71e3ba46b208fb731a158cf95ccf4c4d","title":"The Apparent Contradiction — Open AND Closed?","order":2},{"id":"seed_c8b6015d2d1f9f1c015612861bcfa42c","title":"How Abstraction Resolves It — The Elegant Solution","order":3}]},{"id":"seed_6dfa6d220a95a3b79a8e085ba1cf24b2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Achieving Ocp Through Abstraction","order":3,"contentType":"LEARNING","contentSlug":"achieving-ocp-through-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.220Z","pages":[{"id":"seed_6b1afbdef8f6f639ac94ac3704bece4a","title":"Interfaces as Extension Points","order":0},{"id":"seed_5e02906bcae6c66dd513855d6f6e2e7c","title":"Abstract Classes for Variation","order":1},{"id":"seed_e3ae5b524681626a030124d3815ca13c","title":"Plugin Architectures","order":2},{"id":"seed_0f12e82b09c15277b7cd3c26a0fdc085","title":"Designing for Change","order":3}]},{"id":"seed_5e0af780582da8fb6ed30d16690c6d99","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Strategy Pattern And Ocp","order":4,"contentType":"LEARNING","contentSlug":"strategy-pattern-and-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_07f34d427937294e2ae18eec6131c2d1","title":"Strategy as OCP Enabler","order":0},{"id":"seed_c7314cef5a7c68a837a93ae021faa028","title":"Injecting Behavior Variations","order":1},{"id":"seed_22ea04448f449aad608225d9857ad59e","title":"Adding New Strategies Without Modification","order":2},{"id":"seed_d516e7ad817f0a35a2d8824379d55783","title":"OCP Through Composition","order":3}]},{"id":"seed_3309e375d5681e638818d7c5f6231fed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Ocp Violations And Fixes","order":5,"contentType":"LEARNING","contentSlug":"ocp-violations-and-fixes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_dbaa89e618e445eb07ecdf5aff995436","title":"If-else Chains as OCP Violations","order":0},{"id":"seed_bca2563c0aa2fdb164d22fce7215d4fc","title":"Type Checking with instanceof","order":1},{"id":"seed_45f53c78db6cf3e8b5302bcdf27af40b","title":"Switch Statements on Type","order":2},{"id":"seed_954bf64ca77dc2e8aa77c1c06babefdc","title":"Refactoring to OCP-Compliant Design","order":3}]},{"id":"seed_e7c86d7eb27eb5bfd23eb4eddfa8683e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Balancing Ocp With Pragmatism","order":6,"contentType":"LEARNING","contentSlug":"balancing-ocp-with-pragmatism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_a5f2fc1ce2798f6f20fd72d6cd7075aa","title":"Not Every Change is Foreseeable","order":0},{"id":"seed_7b2e5f2d43b076bbe7fff99fc2b5a1c5","title":"Cost of Over-Engineering","order":1},{"id":"seed_905041809e69f5372ad5734091394949","title":"Strategic Extension Points","order":2},{"id":"seed_ed01224c2d1e37e242bd05c32f09b343","title":"Iterative Application of OCP","order":3}]},{"id":"seed_149fbd04950a5006abe8ac5bfeed2fbf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"What Is Lsp","order":1,"contentType":"LEARNING","contentSlug":"what-is-lsp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_1729972eeace8a7c5ee97eb92b48f796","title":"Subclasses Must Be Substitutable for Base Classes","order":0},{"id":"seed_8a88ec0ea95891df1504e529ca80c5f8","title":"Barbara Liskov's Formulation","order":1},{"id":"seed_eae390dd794dda246b2c26751fb94ea0","title":"LSP as Behavioral Contract","order":2},{"id":"seed_0ecb649b256754c57e0d22eab16e6c40","title":"Why LSP Matters for Polymorphism","order":3}]},{"id":"seed_2c8136281afb042aff35d7238abf35ff","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Behavioral Subtyping","order":2,"contentType":"LEARNING","contentSlug":"behavioral-subtyping","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_265a6d83c3e3de15c349e3560bbc1281","title":"Syntactic vs Semantic Compatibility","order":0},{"id":"seed_9f1f4faacb1919abb3accf2f87bdcbfd","title":"Preserving Expected Behavior","order":1},{"id":"seed_82d87fe2074089fa175b60640b402534","title":"Client Expectations","order":2},{"id":"seed_f35b779cbe7cc84000b76ab1619050fb","title":"Contracts in Inheritance","order":3}]},{"id":"seed_12a824f2010a2a39bea1f374b86f4de7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"The Rectangle Square Problem","order":3,"contentType":"LEARNING","contentSlug":"rectangle-square-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_5cf6f39f2d286ce4ba012f03b9fcf3dd","title":"The Classic LSP Violation Example","order":0},{"id":"seed_244d230dc4a3ca9cc03d02b4d040ee33","title":"Why Square Extending Rectangle Breaks LSP","order":1},{"id":"seed_0eec48c9197f0827ad7d3a967bdfed6a","title":"Mathematical vs Behavioral Inheritance","order":2},{"id":"seed_f50981255ad120266ea33fba6d3a045d","title":"Alternative Designs","order":3}]},{"id":"seed_9c00729cf37512df24e500dbb9d6663d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Preconditions And Postconditions","order":4,"contentType":"LEARNING","contentSlug":"preconditions-and-postconditions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_95226632a41575715a51c52d81a103c7","title":"Preconditions — What Must Be True Before","order":0},{"id":"seed_b22744a211ddaa75d645d1bdbbba00d6","title":"Postconditions — What Must Be True After","order":1},{"id":"seed_440c6d814cce1469d0b694998571bf97","title":"Weakening vs Strengthening — The Intuitive Guide","order":2},{"id":"seed_2eb2dbe29057a0aef8c782b912b9fadd","title":"Contract Rules for LSP — The Complete Picture","order":3}]},{"id":"seed_5ecf1145636cf4fbb2c6ae6bebfd2878","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Invariants In Inheritance","order":5,"contentType":"LEARNING","contentSlug":"invariants-in-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_ac507b560b331c0b16de24efec026697","title":"Class Invariants - Always-True Conditions","order":0},{"id":"seed_42f91e8895588fc24a14e1cf62cc8fd5","title":"Preserving Invariants in Subclasses","order":1},{"id":"seed_3ead52fe97500c92ba0678138d90f15a","title":"Invariant Violations","order":2},{"id":"seed_1af4ef0008e2038b58639ef9647b61cf","title":"Designing for Invariant Safety","order":3}]},{"id":"seed_6b3aebf3a5f882aa99b028482211c61b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Detecting And Fixing Lsp Violations","order":6,"contentType":"LEARNING","contentSlug":"detecting-fixing-lsp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_58c1a24bc6ac531347c3f582d7ff57ad","title":"Type Checking in Client Code — The Symptom of LSP Violations","order":0},{"id":"seed_1527ae233e3f43bf949840774ddf2d1b","title":"Unexpected Exceptions from Subclasses — The Silent Contract Breakers","order":1},{"id":"seed_6189d52fe459d3859b861b294d051373","title":"Partial Implementations — The Incomplete Contract Fulfillment","order":2},{"id":"seed_fc3866ea6a260693a1ea41c17e9a19eb","title":"Refactoring Strategies for LSP — Systematic Approaches to Fixing Violations","order":3}]},{"id":"seed_2fdc2944580b8c7d569cc44342d8470c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"What Is Isp","order":1,"contentType":"LEARNING","contentSlug":"what-is-isp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_74d0373e3ac352219268a41cfd74b076","title":"Definition: Clients Shouldn't Depend on Methods They Don't Use","order":0},{"id":"seed_1034eb9fd61bbe5c0d36638f9a72fe98","title":"ISP and Interface Design","order":1},{"id":"seed_543f1d810a81840277c9d5a671f2dfb8","title":"Why Fat Interfaces Are Problematic","order":2},{"id":"seed_1cef694f8f1a6973dbddb7d99664f01b","title":"ISP for Decoupling","order":3}]},{"id":"seed_5ce00075edb0ab3defffddf46d6b83d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Fat Interfaces Problem","order":2,"contentType":"LEARNING","contentSlug":"fat-interfaces-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_67f1c9f9eb763698312b63072b018686","title":"What Is a Fat Interface","order":0},{"id":"seed_e573ab80a51eedcc3413c0914daef22f","title":"Unused Method Dependencies","order":1},{"id":"seed_e17c12dc21eb41c11db9dfdcf1879ffb","title":"Implementation Burden","order":2},{"id":"seed_55fca163c73bb6d8e98de89d0eacf254","title":"Change Propagation Issues","order":3}]},{"id":"seed_4e9482fc4232955821e2ffebbf8fc652","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Role Based Interface Design","order":3,"contentType":"LEARNING","contentSlug":"role-based-interface-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_7f5250d2a6ed78ff18875a44b15a5487","title":"Interfaces Representing Roles","order":0},{"id":"seed_50229b123066d71f5fa5af4159d124cd","title":"Client-Specific Interfaces","order":1},{"id":"seed_8b18e3ad9f6021649e725cfa04e743f9","title":"Minimal Interface Principle","order":2},{"id":"seed_9ebad3e9c314225d16993eb0b800b065","title":"Role Discovery Process","order":3}]},{"id":"seed_6a26e140e0dac95832618bc3f197b70d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Splitting Interfaces","order":4,"contentType":"LEARNING","contentSlug":"splitting-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_5306affcd06f4425a69e0444c9495352","title":"Identifying Split Boundaries","order":0},{"id":"seed_021898b0b0a6e3dac9f93efab93b47ee","title":"Multiple Interface Implementation","order":1},{"id":"seed_e73424ff7d01b3ce50e93a3f3c043767","title":"Migration Strategies","order":2},{"id":"seed_72667278908f7584f358bc83a77e882f","title":"Backward Compatibility Considerations","order":3}]},{"id":"seed_0a8f7dd84dda2f1f32ddab2ab64e8f2e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Isp And Dependency Management","order":5,"contentType":"LEARNING","contentSlug":"isp-and-dependency-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_a1f30413a66d05150d629425dcec957c","title":"Reducing Transitive Dependencies","order":0},{"id":"seed_c2faec1c29d78076f22855902a9d083b","title":"Interface-Based Decoupling","order":1},{"id":"seed_893e908a9b759979dfadddec29ecdc56","title":"ISP in Module Boundaries","order":2},{"id":"seed_e6e5e5ff38a50408be6049f66e99eeb0","title":"ISP in API Design","order":3}]},{"id":"seed_49a97270cce660bfa68f89286e3dd5c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Isp In Practice","order":6,"contentType":"LEARNING","contentSlug":"isp-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_d2d0e432343fb0a595f25e7aa597132b","title":"Real-World ISP Examples","order":0},{"id":"seed_dad972721f86ec512819bd365ef765e8","title":"Common ISP Mistakes","order":1},{"id":"seed_834fddba7ada90bd96ea1915337cc3d0","title":"ISP Checklist","order":2},{"id":"seed_3f809c1ea8776074ce3164a7a627cd1b","title":"Balancing Granularity","order":3}]},{"id":"seed_1791bf72fa3546f779c23c8b748a2a5b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"What Is Dip","order":1,"contentType":"LEARNING","contentSlug":"what-is-dip","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_dc9d4ac493bebd5f1807d669b54e4ab7","title":"Definition — Depend on Abstractions, Not Concretions","order":0},{"id":"seed_87c3bbdb9d9e71d23c8b0534baf43c9a","title":"High-Level and Low-Level Modules","order":1},{"id":"seed_363546d4a4bfb86cc0d93291d394aa60","title":"Traditional vs Inverted Dependencies","order":2},{"id":"seed_5a280e544b782828ad6781fe4e7e20ca","title":"Why DIP Enables Flexibility","order":3}]},{"id":"seed_83a41e4dbe3bbc0a7484e67d8fe7d562","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"High Level Vs Low Level Modules","order":2,"contentType":"LEARNING","contentSlug":"high-level-vs-low-level-modules","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_81a1605e3bbbea8d626a64f3420c5552","title":"High-Level Modules — Policy and Business Logic","order":0},{"id":"seed_8238a5b57d5ad5b817d63237013637d0","title":"Low-Level Modules — Implementation Details","order":1},{"id":"seed_8f6cef04c2a504066a474926ada31015","title":"Identifying Levels in Your Code","order":2},{"id":"seed_b12b643dcd5992e9e9a4592e6a45704c","title":"Protecting High-Level from Low-Level Changes","order":3}]},{"id":"seed_addfd929a8fe03e0f40a6413d91f14d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Depending On Abstractions","order":3,"contentType":"LEARNING","contentSlug":"depending-on-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_3bef477e310b108cdbfebf8cbbc0f7c5","title":"Interfaces as Abstraction","order":0},{"id":"seed_37e95afe6824a4812314a4d57bfc1b21","title":"Ownership of Abstractions","order":1},{"id":"seed_ad8e840f87d906326244d179820e4248","title":"Abstractions at Boundaries","order":2},{"id":"seed_9db2d9676021cbd2532d932a5ee91262","title":"Stable Abstractions Principle","order":3}]},{"id":"seed_4f2678d8fb5cdba2b0bf1d17e8b49216","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dependency Injection Fundamentals","order":4,"contentType":"LEARNING","contentSlug":"dependency-injection-fundamentals","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_0afadd38f3c6440146023dce8ff4b6ae","title":"What is Dependency Injection","order":0},{"id":"seed_942456ad23e7d4e502f205baffaf0a97","title":"Constructor Injection","order":1},{"id":"seed_5b72052f2e81fae874446b7f1f93ff6d","title":"Setter Injection","order":2},{"id":"seed_91579489865124b50b65c9d26e730bf5","title":"Interface Injection","order":3},{"id":"seed_ff52d2a5ae6b8f6077c39d370a13e62c","title":"Choosing the Right Injection Style","order":4}]},{"id":"seed_1ec0a952980acc719a9d85ab4798d269","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Inversion Of Control Containers","order":5,"contentType":"LEARNING","contentSlug":"ioc-containers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_d26fbcdfaec83fc587322a0df32538cf","title":"What is an IoC Container","order":0},{"id":"seed_556dee11f5f79b338d249485306225bc","title":"Container Configuration","order":1},{"id":"seed_0c9de4732db41b4dba3e02bdbf41f5ff","title":"Automatic Dependency Resolution","order":2},{"id":"seed_112c146417c6c7a27ebcf6cdad991b3a","title":"Popular Frameworks Overview","order":3}]},{"id":"seed_0e3cb60181dfd928c3ad79f460f06aa9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dip And Testability","order":6,"contentType":"LEARNING","contentSlug":"dip-and-testability","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_740ce6f9866a9c7189c438b0e2a79695","title":"Mock Injection Through DIP","order":0},{"id":"seed_4f229236ea9c0038309f3257ef200425","title":"Isolating Units for Testing","order":1},{"id":"seed_7a8066e52021ee5abab7962ad20eaa09","title":"Designing for Testability","order":2},{"id":"seed_70ff04bdba0d6c6fed2204792ae5c030","title":"DIP in Test Architecture","order":3}]},{"id":"seed_fc6a2358552f049549aef09b51569132","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Dry Dont Repeat Yourself","order":1,"contentType":"LEARNING","contentSlug":"dry-dont-repeat-yourself","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_a8e0fb40fc4b815914b77a10d316a0dd","title":"Definition and Rationale of DRY","order":0},{"id":"seed_685a5f8ec913b969bcb6041518127661","title":"Knowledge Duplication vs Code Duplication","order":1},{"id":"seed_4ee11d917134a4c29ab25aafc1495cc8","title":"DRY Violations and Fixes","order":2},{"id":"seed_1acf0725938dc3b4ef7656597dac7334","title":"When DRY Goes Too Far","order":3}]},{"id":"seed_0fb562d83598a8ccf83a92665e3ce628","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Kiss Keep It Simple Stupid","order":2,"contentType":"LEARNING","contentSlug":"kiss-keep-it-simple-stupid","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_4e3a6c71ec7a402a8fbe0b2365b55fd3","title":"Simplicity as a Design Goal","order":0},{"id":"seed_c4cb6898b17bdbf628decac6448c1ec3","title":"Complexity Costs","order":1},{"id":"seed_9b008a17896c4536bd1cc8a4a652907b","title":"Simpler Alternatives","order":2},{"id":"seed_6ae413585c88ba1d2b1d7dbde3c83c0c","title":"When Simplicity Conflicts with Other Goals","order":3}]},{"id":"seed_7179a314876d1b8bdc6d2a8bc3a8b4fc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Yagni You Arent Gonna Need It","order":3,"contentType":"LEARNING","contentSlug":"yagni-you-arent-gonna-need-it","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.221Z","pages":[{"id":"seed_47075d47d4bd05da09d53758b37292c6","title":"Avoiding Speculative Features","order":0},{"id":"seed_caf58722fbe9730b05744d522076dea0","title":"Cost of Unused Code","order":1},{"id":"seed_01b4627f31daaf023d26ac6deb7666e6","title":"Iterative Design Approach","order":2},{"id":"seed_bfd6ec1b93a71a29cb912bfc1690f4ec","title":"Balancing YAGNI with Extensibility","order":3}]},{"id":"seed_61e01fef0c5b40af0f16e4759311708f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Law Of Demeter","order":4,"contentType":"LEARNING","contentSlug":"law-of-demeter","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_9363d594302a878deb15e7d0f1a33598","title":"Definition — Talk Only to Friends","order":0},{"id":"seed_cf4cbe94d3f3fbd0a2d723eecd191146","title":"Reducing Coupling Through Demeter","order":1},{"id":"seed_408f5ffc2190725f51f4b3659d9cc0d1","title":"Method Chains and Demeter","order":2},{"id":"seed_29d492db01155ad128ee1085fbc91023","title":"Applying Demeter Appropriately","order":3}]},{"id":"seed_49e45ac569851fb42757e87f165a6e0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Principle Of Least Astonishment","order":5,"contentType":"LEARNING","contentSlug":"principle-of-least-astonishment","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_67e32a8d490a79404d5a58ef535a7f24","title":"Design That Matches Expectations","order":0},{"id":"seed_125413a54c1cb0280f46283b3a4e6496","title":"Predictable Behavior","order":1},{"id":"seed_354eae71204c9f110d3f16ea945e16c8","title":"Naming and Astonishment","order":2},{"id":"seed_80ebd71b816a5a348c634bdadf7d663a","title":"API Design and Astonishment","order":3}]},{"id":"seed_4a6d82ed9d562c676090d9d490367c24","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Tell Dont Ask","order":6,"contentType":"LEARNING","contentSlug":"tell-dont-ask","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_55449ded1b8248c1f9eb34db120d75d1","title":"Commands Over Queries","order":0},{"id":"seed_0f974ff6cf54d6195668887578e1b6da","title":"Pushing Behavior to Data","order":1},{"id":"seed_c41b73a957515bd15bfac1922c7f2df7","title":"Tell, Don't Ask Examples","order":2},{"id":"seed_1d6ee1174e5934ebcc9cf1c1f9440de6","title":"When Asking Is Appropriate","order":3}]},{"id":"seed_76a369e882aff43b6ee5286a37fe7c7e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Separation Of Concerns","order":7,"contentType":"LEARNING","contentSlug":"separation-of-concerns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_21d296f978f79f79b5695851819f12dd","title":"Identifying Concerns","order":0},{"id":"seed_275c37295285f84cf0f0aa29b9ac48e6","title":"Isolating Concerns","order":1},{"id":"seed_341f66aa32c8cbaf66926b0514ad732f","title":"Cross-Cutting Concerns","order":2},{"id":"seed_835298ae287a4c4dc915d09b3b90cd27","title":"Concern Separation in Architecture","order":3}]},{"id":"seed_631c145a428b60d482acab7a6b0428ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Cohesion And Coupling","order":8,"contentType":"LEARNING","contentSlug":"cohesion-and-coupling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_b00e622593b78fbbbe470b593ea3a1ae","title":"High Cohesion — Things That Belong Together","order":0},{"id":"seed_83a32efe3212811d0ddf87eb8806e50a","title":"Low Coupling — Minimal Dependencies","order":1},{"id":"seed_d6dd0af800b501ae63a49f4fb1647f25","title":"Measuring Cohesion and Coupling","order":2},{"id":"seed_d04951f6aea036cb6649ac8080d1b156","title":"Trade-offs in Design","order":3}]},{"id":"seed_4b06b453f50a1fc71e389588b1305e52","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"What Are Design Patterns","order":1,"contentType":"LEARNING","contentSlug":"what-are-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_74fe08eaf4766230de910704eda792ca","title":"Definition: Reusable Solutions to Common Problems","order":0},{"id":"seed_e56fab496c5f95b8f7cca0b901efbc70","title":"Patterns as Communication Tools","order":1},{"id":"seed_39a142dd5d22f40829b5325ecc3b73af","title":"Patterns as Design Vocabulary","order":2},{"id":"seed_1ca575106ba641aab7bf083d4e3cef26","title":"What Patterns Are NOT","order":3}]},{"id":"seed_67b6c8f2ab71b1e3120bfa635ffd01bf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"History And Origins Gang Of Four","order":2,"contentType":"LEARNING","contentSlug":"history-and-origins","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_2653b68824a947c68d5f5300a8c4345b","title":"The Gang of Four Book","order":0},{"id":"seed_ec76972c21bcd4a2f8419961201ff5dc","title":"Original 23 Patterns","order":1},{"id":"seed_4a5ef5b642762a505954cc6d4890c02c","title":"Pattern Documentation Format","order":2},{"id":"seed_cc361ed717a9201552019e122ea5fde0","title":"Evolution of Patterns","order":3}]},{"id":"seed_3bca43a94769033672a65403ad0fafa6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Categories","order":3,"contentType":"LEARNING","contentSlug":"pattern-categories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_a7a37047f198d3910c113ae83aae5468","title":"Creational Patterns — Object Creation","order":0},{"id":"seed_484c809897284d278e4686fdcefffed1","title":"Structural Patterns — Object Composition","order":1},{"id":"seed_786f2905e70eaf9b06469f614723ca9e","title":"Behavioral Patterns — Object Interaction","order":2},{"id":"seed_f1b728bc6f1a14752cb38b3b9791b0d3","title":"Categorization Purpose — Why the Taxonomy Matters","order":3}]},{"id":"seed_cd7b5b3149710a382b2113e8e30a906b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"When To Use Patterns","order":4,"contentType":"LEARNING","contentSlug":"when-to-use-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_71bb012cb0231134eddea82f1a1dfac0","title":"Pattern as Solution to Specific Problem","order":0},{"id":"seed_099bc866cc784c6ae59e89ca0cdff47d","title":"Problem-Pattern Matching","order":1},{"id":"seed_55f10364d97a0f46ea97cc0f491fa9c6","title":"Avoiding Premature Patterns","order":2},{"id":"seed_6f1111e070b931d5b630f13c69742d0f","title":"Refactoring to Patterns","order":3}]},{"id":"seed_8625d8f0e7e688a575e0ab49b100d4b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Anti Patterns And Pattern Abuse","order":5,"contentType":"LEARNING","contentSlug":"anti-patterns-and-pattern-abuse","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_36c982cde73e9fca21f1ce569d195b6d","title":"What Are Anti-Patterns?","order":0},{"id":"seed_db43c3a4b533b5420894045bbc027cee","title":"Over-Patterning","order":1},{"id":"seed_c1232b43d16610da2e8578008eecdd02","title":"Pattern for Pattern's Sake","order":2},{"id":"seed_efe39f1b01095d6b80816206f1b3c9f0","title":"Keeping It Simple","order":3}]},{"id":"seed_465d789c1fd1b3e7766da17d8ae20d38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Selection Framework","order":6,"contentType":"LEARNING","contentSlug":"pattern-selection-framework","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_5cda832d626b9a3a11671794c0bb2cd9","title":"Identifying the Problem","order":0},{"id":"seed_ad7fef6e3a7cc4f7528bfc8ed3fd746a","title":"Evaluating Pattern Fit","order":1},{"id":"seed_3f38fb26ab34f5ba11f8bf2016ea16ab","title":"Considering Alternatives","order":2},{"id":"seed_1513db1a72664c15f34335c8cb3a63a0","title":"Decision Checklist","order":3}]},{"id":"seed_31521a6ae118679015299be83d3f305f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Factory Method Pattern","order":1,"contentType":"LEARNING","contentSlug":"factory-method","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_1f31b357268a7eff73d7ec64db18821b","title":"Problem: Creating Objects Without Specifying Exact Class","order":0},{"id":"seed_ac138317a8e34ee2d14085ecc156ee17","title":"Solution: Define Interface for Creation","order":1},{"id":"seed_ce5ce5cb8413be0da6ac82fe56849109","title":"Participants and Structure","order":2},{"id":"seed_26ce2487999fda8e3ade3ee269232846","title":"Use Cases and Examples","order":3}]},{"id":"seed_37c63790d3dcf4acbbf94624f01f1769","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Abstract Factory Pattern","order":2,"contentType":"LEARNING","contentSlug":"abstract-factory-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_f3b3d568addf13e526b77b5b6af8b4dc","title":"Problem — Creating Families of Related Objects","order":0},{"id":"seed_b2b07868805d8039be9c1cdb7d5aa38d","title":"Solution — Abstract Factory Interface","order":1},{"id":"seed_9cef236d1b88eeca7eec687f743d1931","title":"Participants and Structure","order":2},{"id":"seed_e537f3adfd3548c1c632957ab23173d7","title":"Factory Method vs Abstract Factory","order":3}]},{"id":"seed_2584dcd2d5c64dbc9b90c3f0febd2438","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Builder Pattern","order":3,"contentType":"LEARNING","contentSlug":"builder-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_4d9db8167c14b9d17e2ad5be74339fd2","title":"Problem: Constructing Complex Objects Step by Step","order":0},{"id":"seed_fd5fa9b24437985066daeacba38ef850","title":"Solution: Separate Construction from Representation","order":1},{"id":"seed_6a6fed308828080b2e33aa4df7f62234","title":"Fluent Builder Interface","order":2},{"id":"seed_5e7701b39ed8acd73b4c89dce5f4efb4","title":"Director Role (Optional)","order":3}]},{"id":"seed_d67bdb86430e087e0fba938024585543","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Prototype Pattern","order":4,"contentType":"LEARNING","contentSlug":"prototype-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_0970e64c595fa8d538e9e2c5531fcd64","title":"Problem: Creating Objects by Copying Existing Ones","order":0},{"id":"seed_83eb629a9207a27d5b9cc6c407e4460b","title":"Solution: The Clone Method","order":1},{"id":"seed_1dc4b6bfb2600b823c83eb95c7a8fa12","title":"Shallow vs Deep Copy","order":2},{"id":"seed_47e720745b3453a7ae0e0d8abf5b95e3","title":"Registry of Prototypes","order":3}]},{"id":"seed_fcbc07e84e14f4b9ed6263b23222c5e0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Singleton Pattern","order":5,"contentType":"LEARNING","contentSlug":"singleton-pattern","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_5d5684c6cb5969310ace99df90ef3af3","title":"Problem — Exactly One Instance","order":0},{"id":"seed_3655521fbc2171e77989e04f74ec7657","title":"Solution — Private Constructor, Static Accessor","order":1},{"id":"seed_d4bc3007f9dae1fc8e418f41a474b428","title":"Singleton Implementation Challenges","order":2},{"id":"seed_e8ffda1d6b9762e382506b8bbce71c37","title":"Thread-Safe Singleton","order":3},{"id":"seed_1f0f4d1be8d94aff2237c7a3b9ce7cae","title":"Singleton Criticisms and Alternatives","order":4}]},{"id":"seed_c87eef2744d8a3b1951da6085714e871","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Object Pool Pattern","order":6,"contentType":"LEARNING","contentSlug":"object-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_b09e73120074b0d2aba05b610c5d2ee8","title":"Problem — Expensive Object Creation","order":0},{"id":"seed_26eef6ec9f32de2f3e8aae29a956679d","title":"Solution — Reusable Object Pool","order":1},{"id":"seed_5f9bee046271d9cac245dc07ce33206c","title":"Pool Management","order":2},{"id":"seed_a6c7f71191cdf4bf3d19585e29d786ae","title":"Pool Size and Lifecycle","order":3}]},{"id":"seed_c9cd7c486f9a697a5ec9f274ee3829bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Choosing The Right Creational Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-the-right-creational-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_88f294f5320aeefeefb95a097696ad06","title":"Pattern Comparison","order":0},{"id":"seed_17ee746516e8424468861c616988a9e9","title":"Decision Tree","order":1},{"id":"seed_ee422e291eddd902f033f33099799bb1","title":"Combining Patterns","order":2},{"id":"seed_2b8a76738934658bc2426af207c4160b","title":"Real-World Examples","order":3}]},{"id":"seed_fc2ea3142f1aa3442a0fe3473b57d54c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Adapter Pattern","order":1,"contentType":"LEARNING","contentSlug":"adapter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_21c1f9df6d379a14bddb1599915defc6","title":"Problem — Incompatible Interfaces","order":0},{"id":"seed_214ea15fd689b7ea422b15ac199f930a","title":"Solution — Wrapper That Translates","order":1},{"id":"seed_72af182a008b396322011bd5c02ef914","title":"Class Adapter vs Object Adapter","order":2},{"id":"seed_0b3e950bc4d1865dac88a6aee37f709e","title":"Use Cases and Examples","order":3}]},{"id":"seed_a94f2581c470338713bb59bfb1d73ee5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Bridge Pattern","order":2,"contentType":"LEARNING","contentSlug":"bridge-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_e788eae3fcff33623730d75e5814553f","title":"Problem — Abstraction Coupled to Implementation","order":0},{"id":"seed_2b818fdf286d0b83821e16df004a9d60","title":"Solution — Separate Abstraction and Implementation Hierarchies","order":1},{"id":"seed_c3748c4868259bfd793e6ee7157654dc","title":"Bridge vs Adapter — Understanding the Difference","order":2},{"id":"seed_67e77e9a0bd2506b764869368622d8bc","title":"Use Cases and Examples","order":3}]},{"id":"seed_ee8cab08395ba4f631c403c8c7e1fe66","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Composite Pattern","order":3,"contentType":"LEARNING","contentSlug":"composite-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_ac95770b09785c3fdb568954089b333c","title":"Problem — Treating Individual and Composite Uniformly","order":0},{"id":"seed_746f8b427449359a67741f73c5e35493","title":"Solution — Tree Structure with Common Interface","order":1},{"id":"seed_b4b14482d66f129e87311664b012b963","title":"Component, Leaf, Composite — The Pattern Participants","order":2},{"id":"seed_cc6e3bcdf445fe587c617df8f76446a6","title":"Use Cases and Examples","order":3}]},{"id":"seed_2083bb0709af82face089b7a29c89c31","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Decorator Pattern","order":4,"contentType":"LEARNING","contentSlug":"decorator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.222Z","pages":[{"id":"seed_ea9ec1351921f6b8f7d90baf2785b399","title":"Problem — Adding Behavior Dynamically","order":0},{"id":"seed_c67c5af73f2d10fcbbcbba780a0f5568","title":"Solution — Wrapping with Decorators","order":1},{"id":"seed_d8a7c3d56eb523a309de128a7129b778","title":"Decorator vs Inheritance","order":2},{"id":"seed_09d85a6e4a6b4ddfd61214347831a292","title":"Use Cases and Examples","order":3}]},{"id":"seed_ecfa3243624bcfe46a56d43f425c94dc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Facade Pattern","order":5,"contentType":"LEARNING","contentSlug":"facade-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_d0eed2f61865a0b3b73d136809a6c8b0","title":"Problem: Complex Subsystem Interface","order":0},{"id":"seed_c5b23a48c08ce008457e791e54aeafc4","title":"Solution: Simplified Unified Interface","order":1},{"id":"seed_77563eb5bbe453c308db0606e381c724","title":"Facade Design Considerations","order":2},{"id":"seed_718db90fafcc5a339eb1deea970aa6ed","title":"Use Cases and Examples","order":3}]},{"id":"seed_c6f8d1fdcf8e6e9875be363a9ea388d4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Flyweight Pattern","order":6,"contentType":"LEARNING","contentSlug":"flyweight-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_8fd10141aa8d839667df9af827fdf8c7","title":"Problem: Large Number of Similar Objects","order":0},{"id":"seed_84fa2ae8415a349cb8e1c2540102204c","title":"Solution: Share Common State","order":1},{"id":"seed_23e5bdae851970268f39f266542e208b","title":"Intrinsic vs Extrinsic State","order":2},{"id":"seed_bffbba89e252f253d7c9781ab7226c05","title":"Use Cases and Examples","order":3}]},{"id":"seed_f9a059902a7c8164f5094b68a19b7774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Proxy Pattern","order":7,"contentType":"LEARNING","contentSlug":"proxy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_853a9d51f6c1d66b86fbf4375da26814","title":"Problem — Controlling Access to Object","order":0},{"id":"seed_3d7c7ae9605ad1a8077e75c275c109c3","title":"Solution — Surrogate with Same Interface","order":1},{"id":"seed_0fee2d24ab5e92fafe35a62563cfd535","title":"Proxy Types — Virtual, Protection, Remote","order":2},{"id":"seed_11505c63af4c34909a615dbb986c415f","title":"Use Cases and Examples","order":3}]},{"id":"seed_b301d5919f0a5067a0776f4f94d1874d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Choosing Structural Pattern","order":8,"contentType":"LEARNING","contentSlug":"choosing-structural-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_faa1c27ba256ea825addda812c8f78a7","title":"Pattern Comparison — A Comprehensive Analysis","order":0},{"id":"seed_294f39ded082e62b8b4423a9a7bb4193","title":"Decision Tree — A Systematic Framework for Pattern Selection","order":1},{"id":"seed_2cfd87a3ec48c25964dc027039af9214","title":"Combining Patterns — Synergistic Pattern Composition","order":2},{"id":"seed_a8899bf52bcdf8067f960d86d9bea22c","title":"Real-World Examples — Structural Patterns in Production Systems","order":3}]},{"id":"seed_70632263cf973b25e4fde8517ca67c71","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Strategy Pattern","order":1,"contentType":"LEARNING","contentSlug":"strategy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_b4a1890b533a584a57b3b3ee1e5dface","title":"Problem: Interchangeable Algorithms","order":0},{"id":"seed_999d1b4167ea4494d71874369bd14d00","title":"Solution: Encapsulate Algorithms in Classes","order":1},{"id":"seed_e10325ae50caa50ccfa55da244355d54","title":"Strategy Selection","order":2},{"id":"seed_93852b40240b565f507cc804f237e64d","title":"Use Cases and Examples","order":3}]},{"id":"seed_646cb1710a949e774ecd419bc7853aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Observer Pattern","order":2,"contentType":"LEARNING","contentSlug":"observer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_40116bfffc949a4e3a8d00b58e682401","title":"Problem: One-to-Many Dependency","order":0},{"id":"seed_792350d9de29c6652f06502836f6702d","title":"Solution: Publish-Subscribe Mechanism","order":1},{"id":"seed_e2513012d4f64fc82bf30148727e9b63","title":"Subject and Observers","order":2},{"id":"seed_c8deccb59fa748fbb913af86fbe8a27f","title":"Push vs Pull Models","order":3}]},{"id":"seed_dc4f30fe1564a0e10ec0fb62f640ac65","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Command Pattern","order":3,"contentType":"LEARNING","contentSlug":"command-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_508b1df6d09746ca8abf9cb4b08f82a5","title":"Problem: Encapsulating Requests as Objects","order":0},{"id":"seed_473794dea495093b642c9040c77fe443","title":"Solution: Command Objects with Execute","order":1},{"id":"seed_e00bdbd43607344a33a4476be0a1b3da","title":"Undo/Redo Support","order":2},{"id":"seed_86e65e57235868bc0e5d48ddda27a811","title":"Command Queues and Logging","order":3}]},{"id":"seed_75df3a4559b3bd3f5f249edc874f6206","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"State Pattern","order":4,"contentType":"LEARNING","contentSlug":"state-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_aa6d8fff5e2879154e1dee4047954596","title":"Problem: Behavior Depends on State","order":0},{"id":"seed_a558c13c9fda86dbc0f6cd329b5d5f58","title":"Solution: State Objects with Behavior","order":1},{"id":"seed_8fc16a42bc16a44cd8933a7a495910b1","title":"State Transitions","order":2},{"id":"seed_66b594d32b9a85a65782f504dc1fb09e","title":"State vs Strategy","order":3}]},{"id":"seed_75cc9337a9b812b9e549e2d263319fc2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Template Method Pattern","order":5,"contentType":"LEARNING","contentSlug":"template-method-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_fca4b1f2efb74caa266ba8a7f0e21e73","title":"Problem: Algorithm with Varying Steps","order":0},{"id":"seed_deab68314fd544b8c48c0fc2061ac6c9","title":"Solution: Abstract Class with Hook Methods","order":1},{"id":"seed_5e9537772a3d80768e9bb6f1a631b6be","title":"The Hollywood Principle","order":2},{"id":"seed_52adc2a7d451d953b850922f18e9ceb3","title":"Use Cases and Examples","order":3}]},{"id":"seed_e3678090f7b3725a84789e969173868b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Iterator Pattern","order":6,"contentType":"LEARNING","contentSlug":"iterator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_8a7fa2253a1d651f2df0e67eb993c7a3","title":"Problem: Traversing Collections Uniformly","order":0},{"id":"seed_d4d56a80b49588081e8d37899b6c9149","title":"Solution: The Iterator Interface","order":1},{"id":"seed_eed4f7614c7239033997ee3db07c255f","title":"Internal vs External Iterators","order":2},{"id":"seed_d1935320fd38bc1efb3d2661e4c25575","title":"Use Cases and Examples","order":3}]},{"id":"seed_be8abee8a52cd2646b4092c8cee67783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Chain Of Responsibility Pattern","order":1,"contentType":"LEARNING","contentSlug":"chain-of-responsibility-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_61bd64405fff4a791a1b9c676a881486","title":"Problem: Multiple Handlers for a Request","order":0},{"id":"seed_0a442537d170a84894a96eb297d689aa","title":"Solution: Chain of Handler Objects","order":1},{"id":"seed_25d6723070f9f0f954fa2d0252c93199","title":"Chain Construction","order":2},{"id":"seed_8426dd47884d56a5b70acb7c83ad094c","title":"Use Cases and Examples","order":3}]},{"id":"seed_9bc98cba340e6bd3c283cb2c5350626c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Mediator Pattern","order":2,"contentType":"LEARNING","contentSlug":"mediator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_6d02d303e1c0b38dfc4b74b01a15c03b","title":"Problem: Complex Object Interactions","order":0},{"id":"seed_cc439dbb34872885fd57a72b2dfec833","title":"Solution: Centralized Mediator","order":1},{"id":"seed_caa824e09b46b902b56ece04035b5a94","title":"Mediator vs Facade: Understanding the Distinction","order":2},{"id":"seed_5da73e7108221f0049e5bcdc5dde1565","title":"Use Cases and Real-World Examples","order":3}]},{"id":"seed_fce610c28bd52a824515914ba0e3b716","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Memento Pattern","order":3,"contentType":"LEARNING","contentSlug":"memento-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_4a8a9364bf0dfd41044782b125fc11b5","title":"Problem: Capturing and Restoring State","order":0},{"id":"seed_9bce6118d43097b9ec9608bf32840ddf","title":"Solution: Memento Objects","order":1},{"id":"seed_3f4b388c8c092c6cfb3abc0460563843","title":"Originator, Memento, Caretaker","order":2},{"id":"seed_da20d6509fa6fb40413008d203cede00","title":"Use Cases and Examples","order":3}]},{"id":"seed_d4666190c22b4bd8547cd01477c43183","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Visitor Pattern","order":4,"contentType":"LEARNING","contentSlug":"visitor-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_10ec32ccbccf6ca87e72d2fd14ac6245","title":"Problem: Adding Operations Without Modifying Classes","order":0},{"id":"seed_563fc2705fce085ff7d103c61b359d92","title":"Solution: Visitor with Double Dispatch","order":1},{"id":"seed_0bc6e7b55022f6ab773502c92fe15451","title":"When to Use Visitor","order":2},{"id":"seed_ea4116f4509ea6c0b0d5212a67db8595","title":"Use Cases and Examples","order":3}]},{"id":"seed_12d0863cd076b537b01eea9a7a9487e4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Interpreter Pattern","order":5,"contentType":"LEARNING","contentSlug":"interpreter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_ddb11f8158a71e9d8d757fbedb109b33","title":"Problem: Interpreting a Language","order":0},{"id":"seed_366d57bdf1145da96be5fc1d9546fd3f","title":"Solution: Grammar Representation as Classes","order":1},{"id":"seed_bdcdbdf715a47f35b8bce6eb9f98fb8e","title":"When to Use the Interpreter Pattern","order":2},{"id":"seed_762ec90438b70707d0ae8253775f72ef","title":"Alternatives to the Interpreter Pattern","order":3}]},{"id":"seed_ae2380472c4e2f698a7e70c46cad2a7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Null Object Pattern","order":6,"contentType":"LEARNING","contentSlug":"null-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_1e1c5fe68402026e89e7d2eba1f0c6f1","title":"Problem: Handling Null References","order":0},{"id":"seed_1456a59feef80bb93d4a242d42c64c2a","title":"Solution: Null Object with No-Op Behavior","order":1},{"id":"seed_6f12886ba3b119243ec5f70320baaa74","title":"Benefits and Trade-offs","order":2},{"id":"seed_fb6ff9fbd2af0e13eafa977186a95c75","title":"Use Cases and Examples","order":3}]},{"id":"seed_494dbe0016c35cd34196f1246971049f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Choosing Behavioral Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-behavioral-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_ed8eccc6f157e2928128d240e10f017f","title":"Behavioral Pattern Comparison","order":0},{"id":"seed_6d6cdd0448e6c22c24cb52c445f282f1","title":"Decision Tree for Behavioral Pattern Selection","order":1},{"id":"seed_221f823187793cc0759613de70de021f","title":"Combining Behavioral Patterns","order":2},{"id":"seed_b94a1e0e85b8777cd16529fff2ec4254","title":"Real-World Examples: Behavioral Patterns in Production Systems","order":3}]},{"id":"seed_b514626cfb1a543278fe504ad0fa7d7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Dependency Injection Revisited","order":1,"contentType":"LEARNING","contentSlug":"dependency-injection-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_7caf65fef91828a5be92d2f317efd7a7","title":"Recap of Dependency Injection from DIP Chapter","order":0},{"id":"seed_5ca7b7b7020d8dddb75ee635a1293efc","title":"DI as a Technique vs DI as a Principle","order":1},{"id":"seed_4e60a8ada5b0cc6e054cdd1014fd8844","title":"Benefits of DI: Flexibility, Testability, Maintainability","order":2},{"id":"seed_cdcac1a2286377ef35bea6d60cf27199","title":"DI Scope and Boundaries","order":3}]},{"id":"seed_9a1e614f6d9d85a73165cd9b03f8836d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Constructor Injection","order":2,"contentType":"LEARNING","contentSlug":"constructor-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_f8cf0df9e488c3b564f96262c0626ef1","title":"Passing Dependencies Through Constructor","order":0},{"id":"seed_df343ad49976e450fe07df5ee22c196f","title":"Mandatory Dependencies Pattern","order":1},{"id":"seed_ac8bbfca95da4d0ca7e5875d301c832e","title":"Immutable Dependencies","order":2},{"id":"seed_37c2eefc59da1408e8764435655781b7","title":"Constructor Injection Best Practices","order":3}]},{"id":"seed_98151bb4f7025da1c313c7b6d19dea45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Setter Injection","order":3,"contentType":"LEARNING","contentSlug":"setter-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_fc127e48854e47f02651296e4e4b641e","title":"Passing Dependencies Through Setters","order":0},{"id":"seed_e855033d41084f189de359bef9420784","title":"Optional Dependencies Pattern","order":1},{"id":"seed_7164f31564e4c58884af2b2e72636c5a","title":"Setter Injection Trade-offs","order":2},{"id":"seed_811b13d7db9ded73ce1612c77cf19d99","title":"When to Use Setter Injection","order":3}]},{"id":"seed_04231ad363d038112c54c0f119c05a46","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Interface Injection","order":4,"contentType":"LEARNING","contentSlug":"interface-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_6281cf1e1be10ed933a7d2e1ee953256","title":"Dependency Provides Injector Interface","order":0},{"id":"seed_6c39906e5b175bfbda7bbf9d7cbb72d2","title":"Implementation Provides Dependency","order":1},{"id":"seed_5bf9701024494aeda011f55b772d9b40","title":"Interface Injection Use Cases","order":2},{"id":"seed_878e7834955e05546f9bc48142e46621","title":"Comparison with Other Injection Types","order":3}]},{"id":"seed_19d079c1f928d92606c1751a1562a53a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Service Locator Vs Dependency Injection","order":5,"contentType":"LEARNING","contentSlug":"service-locator-vs-dependency-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.223Z","pages":[{"id":"seed_dce6f61c8bda936fa40bde4683622659","title":"Service Locator Pattern","order":0},{"id":"seed_1a2abf58041e673ebdeef8068821408b","title":"Why Service Locator Is Often an Anti-Pattern","order":1},{"id":"seed_7783f83aa9de332e0d2914617afc46d9","title":"Hidden Dependencies Problem","order":2},{"id":"seed_4462d2e5d0922c4e244becf55fb10295","title":"When Service Locator Is Acceptable","order":3}]},{"id":"seed_c3dd4b4411e2db18ab1743670a962a05","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Ioc Container Deep Dive","order":6,"contentType":"LEARNING","contentSlug":"ioc-container-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_38eb504548f1868d3f1cae106694ade3","title":"Container Configuration Approaches","order":0},{"id":"seed_50b84fdf51fd09563f740416307d1e04","title":"XML vs Code vs Attribute Configuration","order":1},{"id":"seed_79d23db1666652b8799f5f9bb9c3329c","title":"Automatic Registration Patterns","order":2},{"id":"seed_ae94f5e79200c85d877cb28c88672582","title":"Container Best Practices","order":3}]},{"id":"seed_7ced201633a0e7cef8e78096bfe4ac79","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Lifetime Management","order":7,"contentType":"LEARNING","contentSlug":"lifetime-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_b969420645391f59db5bdecc1a1684f8","title":"Transient Lifetime — New Instance Each Time","order":0},{"id":"seed_18a02616c34040bc58e003990f13bbfe","title":"Scoped Lifetime — Instance Per Scope","order":1},{"id":"seed_ae89dcc6fd254d389ea94e8fb246eca8","title":"Singleton Lifetime — Single Instance","order":2},{"id":"seed_24fe0ed34709b5910c9b7d0584396115","title":"Choosing Appropriate Lifetimes","order":3}]},{"id":"seed_82f189a2b188e10512b5e94ee82e4ca5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Di Anti Patterns And Best Practices","order":8,"contentType":"LEARNING","contentSlug":"di-anti-patterns-and-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_99267a336a647e58c6a37abcd8cf28d7","title":"Constructor Over-Injection","order":0},{"id":"seed_b4c703d71f82552b1e8f96a270eba64d","title":"Circular Dependencies","order":1},{"id":"seed_f1e3c0b9937c662d2e842e572a4d7e47","title":"Captive Dependencies","order":2},{"id":"seed_ece4564a01522961a1ecb5f55c5f8aa0","title":"DI Best Practices Checklist","order":3}]},{"id":"seed_8cf35d216a3dbd388c9ef97ee2b7c846","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Why Concurrency Matters","order":1,"contentType":"LEARNING","contentSlug":"why-concurrency-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_8ab6330d0f4815b2ee09ae02402498a7","title":"Single-threaded Limitations","order":0},{"id":"seed_dc161649a7d90749c03101395bd557c8","title":"Responsiveness and Throughput","order":1},{"id":"seed_4cdb4cae371e9853253cc2b15654baa4","title":"Multi-core Utilization","order":2},{"id":"seed_01353b3d2839dc0dfec26528713067bd","title":"Concurrency in Modern Applications","order":3}]},{"id":"seed_d1423b163211de48afa68240946de736","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Threads And Processes","order":2,"contentType":"LEARNING","contentSlug":"threads-and-processes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_4489d8b2eaa88e3fde9c538d9824fabd","title":"Process: The Independent Execution Environment","order":0},{"id":"seed_88cf5e13e714fb62db6a1ac465df657d","title":"Thread: The Lightweight Execution Unit","order":1},{"id":"seed_8256eaa801d737d80b16d6b01b732732","title":"Thread Lifecycle","order":2},{"id":"seed_a5c973db73c706f92d11734323ef479d","title":"Creating and Managing Threads","order":3}]},{"id":"seed_61cc9efb445be26d5fabe36bcd3e40b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Thread Safety","order":3,"contentType":"LEARNING","contentSlug":"thread-safety","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_55439ec1a46e5767f186894b58b18b77","title":"What is Thread Safety","order":0},{"id":"seed_b39a7e4a7e39efcfdfdd2f23e8e73e99","title":"Shared Mutable State Problems","order":1},{"id":"seed_9cc74c2663ec2ad176faa2a775b5ac90","title":"Race Conditions","order":2},{"id":"seed_dcd51744fcedeb44bf9c7f9bf5b27c17","title":"Designing for Thread Safety","order":3}]},{"id":"seed_27aa7f16765859c9226c842360339c73","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Synchronization Primitives","order":4,"contentType":"LEARNING","contentSlug":"synchronization-primitives","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_372ef74a61ca7ce0ae866fe4b6303fbb","title":"Mutex and Locks: Ensuring Exclusive Access","order":0},{"id":"seed_949dd34b89c2d94539508e40d2e8e17a","title":"Semaphores: Counting-Based Synchronization","order":1},{"id":"seed_e05b44e3b10370ec1512d2ab01bb236e","title":"Monitors: Structured Concurrency Coordination","order":2},{"id":"seed_5afa8842e7b0b6e578dc1642030afb9f","title":"Choosing Synchronization Mechanisms","order":3}]},{"id":"seed_d22f93b8277eb4c8b5330e74a2de02b0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Deadlocks And Prevention","order":5,"contentType":"LEARNING","contentSlug":"deadlocks-and-prevention","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_9b1c8c508c801a7882d137125d8ec297","title":"What is a Deadlock","order":0},{"id":"seed_acddf1b91c848f39aa3d6c79b5cd3db1","title":"Deadlock Conditions (The Coffman Conditions)","order":1},{"id":"seed_f0f3dcdea8d88e9483dcb57996e620e2","title":"Prevention Strategies","order":2},{"id":"seed_2ecec0a365460ecc372b4e955ae18fbb","title":"Detection and Recovery","order":3}]},{"id":"seed_c35af1bd0829845a161c5c5cb6bd3e11","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Atomic Operations","order":6,"contentType":"LEARNING","contentSlug":"atomic-operations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_5c74ea27bd2b3c04ea03ff23d7850b01","title":"What Are Atomic Operations","order":0},{"id":"seed_6b44ab7fa244a1da8f8941404d8acba8","title":"Atomic Primitives","order":1},{"id":"seed_e9fa4c30c8b29a552e762c93c35c9a29","title":"Compare-and-Swap (CAS)","order":2},{"id":"seed_9b4eb9ae21d6f49edc6cafc939c329b6","title":"Lock-Free Programming Basics","order":3}]},{"id":"seed_37ea72e10a41e6b6aa877126af078a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Producer Consumer Pattern","order":1,"contentType":"LEARNING","contentSlug":"producer-consumer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_d46d4da586632cfa80ddc6a21b327062","title":"Problem: Coordinating Producers and Consumers","order":0},{"id":"seed_aa33783934d088a077b0dcb3b0c8c39a","title":"Solution: Bounded Buffer with Synchronization","order":1},{"id":"seed_1b2ab7a29c0984d887029deca7a1d583","title":"Implementation Strategies","order":2},{"id":"seed_7b53321dc415252674cfcbb453af33bc","title":"Use Cases and Examples","order":3}]},{"id":"seed_64280f44c445925c5fc9b746d05d71e8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Thread Pool Pattern","order":2,"contentType":"LEARNING","contentSlug":"thread-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_58753e7ad2c9741ddf4cfd7b2ab57d16","title":"Problem: Expensive Thread Creation","order":0},{"id":"seed_c0e4d5d900b352df7cf41201e4afd80e","title":"Solution: Pool of Reusable Threads","order":1},{"id":"seed_b47bf69841dcbb4fd2b09a3bcdca8f08","title":"Pool Sizing Considerations","order":2},{"id":"seed_45998715e3451e6ff398f0f0b82190a1","title":"Thread Pool in Practice","order":3}]},{"id":"seed_185a4364516655a64d39728fdcd18385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Read Write Lock Pattern","order":3,"contentType":"LEARNING","contentSlug":"read-write-lock-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_8aa671d118fa0f42bbe5b0c2c086d67f","title":"Problem: Multiple Readers, Single Writer","order":0},{"id":"seed_14af92422f5b9571dd2dc1ffe8c98585","title":"Solution: Read-Write Lock","order":1},{"id":"seed_bad54748fb73674dde88df02e1e68d7f","title":"Reader Preference vs Writer Preference","order":2},{"id":"seed_df8061045226e568b0e6c0feea70e531","title":"Use Cases and Examples","order":3}]},{"id":"seed_82c2701d283cc74f9716a92777746e49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Future Promise Pattern","order":4,"contentType":"LEARNING","contentSlug":"future-promise-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_951d224b2fee0c825104ca858b626bc8","title":"Problem: Asynchronous Result Handling","order":0},{"id":"seed_84d37b770ea29701cff7ef308334b60a","title":"Solution: Future/Promise Abstraction","order":1},{"id":"seed_e4072ada418621bc7209fd1ad651e4d2","title":"Composing Futures","order":2},{"id":"seed_909576ba9415d49849b6ea3f7c1f8209","title":"Error Handling with Futures","order":3}]},{"id":"seed_ac1a1c58001d5fc8b2ed7e84bd276221","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Double Checked Locking","order":5,"contentType":"LEARNING","contentSlug":"double-checked-locking","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_3a517144641bc3bf6d28848a32c7c7b6","title":"Problem: Lazy Initialization in Concurrent Context","order":0},{"id":"seed_d7b4d1af848273c62932cf55295a338f","title":"Solution: Double-Checked Locking Pattern","order":1},{"id":"seed_2d7d6d96e4e6a7574b4dfa5a29d412c5","title":"Memory Model Considerations","order":2},{"id":"seed_c7d2c56a2eff262e51461e7aaae52431","title":"Safe Implementation Strategies","order":3}]},{"id":"seed_8173ee638491556066a373ae80c7d07a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Immutable Objects For Concurrency","order":6,"contentType":"LEARNING","contentSlug":"immutable-objects-for-concurrency","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_4b3c08053469452c0646ddbada06a91d","title":"Immutability Recap","order":0},{"id":"seed_0703a4143741cb113de074ed5c3da51e","title":"Thread Safety Through Immutability","order":1},{"id":"seed_41b9e785a4693187cab322bef5689169","title":"Designing Immutable Concurrent Objects","order":2},{"id":"seed_65326ab1a693ace4c7bab4f4741bfb0a","title":"Immutable Collections","order":3}]},{"id":"seed_70367bbd38860adf1d607c3e50d5904d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Active Object Pattern","order":7,"contentType":"LEARNING","contentSlug":"active-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_e93cd33074c6062dd5224f2da45354e5","title":"Problem: Decoupling Method Execution from Invocation","order":0},{"id":"seed_d36205bd167055ea042b805e77de38c9","title":"Solution: Active Object with Command Queue","order":1},{"id":"seed_5165cbe790941a2522b224a9a97c1b81","title":"Scheduler and Proxy: Advanced Patterns","order":2},{"id":"seed_b02f166829bf36b59abab489e3d77fbe","title":"Use Cases and Examples","order":3}]},{"id":"seed_2bd3cfba0e7efdc56d467d2d99c2c422","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Introduction To Ddd","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-ddd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_83fffa16687c5ef560a9a61591075310","title":"What is Domain-Driven Design","order":0},{"id":"seed_882473761d469b30794adfaa2740e33e","title":"Strategic vs Tactical DDD","order":1},{"id":"seed_4d64365852269fe231d0eea2a26d816d","title":"Ubiquitous Language","order":2},{"id":"seed_2e0535197c7f86714066fcf15a5e490e","title":"When DDD is Appropriate","order":3}]},{"id":"seed_22433df8915d434869882c61cb90adaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Entities","order":2,"contentType":"LEARNING","contentSlug":"entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_e964df082cd63d78fdc50e3bebabe55a","title":"What is an Entity","order":0},{"id":"seed_351b035625d30184162b9dad1b694624","title":"Identity vs Equality","order":1},{"id":"seed_af79d2dfa481c76e5fab53fe23b1502f","title":"Entity Design Guidelines","order":2},{"id":"seed_2bf9a6576df79a099f7964005c6d3177","title":"Entity Lifecycle","order":3}]},{"id":"seed_5705fb8dc1875652a4884ff128bf57f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Value Objects","order":3,"contentType":"LEARNING","contentSlug":"ddd-value-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_7042e5685332f2a1e4eb1b3ac1d70552","title":"What is a Value Object","order":0},{"id":"seed_6bc7177051cf0600b2f9fc9d6504ca20","title":"Immutability and Equality","order":1},{"id":"seed_e41c19ce67485bfaad2ffd1e69f4239c","title":"Value Object Design","order":2},{"id":"seed_53170260af2fbc82d5da11cd36889a24","title":"When to Use Value Objects","order":3}]},{"id":"seed_46b012310328e6b9eff4307e9f45b037","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Aggregates","order":4,"contentType":"LEARNING","contentSlug":"ddd/aggregates","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.224Z","pages":[{"id":"seed_3148e709667fd40fb2ea5d2fedefbf4f","title":"What is an Aggregate","order":0},{"id":"seed_726524a7d3c9fd7da64b8268dd7a3e72","title":"Aggregate Root","order":1},{"id":"seed_ab5718a0914db62bb0b8a99dc07142b0","title":"Consistency Boundaries","order":2},{"id":"seed_67fabcb0b7542b07a84fa5fbabf40bc5","title":"Aggregate Design Rules","order":3}]},{"id":"seed_74503f636a680ff917bda14b7396a9ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Repositories","order":5,"contentType":"LEARNING","contentSlug":"ddd-repositories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_dfb5742e4d79d8ff4e91b020361f1202","title":"What is a Repository","order":0},{"id":"seed_3d92c36dee6c3ae8e5e92c58968639e3","title":"Repository as Collection Abstraction","order":1},{"id":"seed_f3c37f1cba1652eb096be789065d7991","title":"Repository Interface Design","order":2},{"id":"seed_97f32bb34fffb138e0afc666e460d7b6","title":"Repository Implementation Considerations","order":3}]},{"id":"seed_0e4408f53c5f89c5597031c848a8cce8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Events","order":6,"contentType":"LEARNING","contentSlug":"lld-domain-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_9fb9f77508195c2223956f24429b4ad6","title":"What Are Domain Events","order":0},{"id":"seed_ba69eae0a6e358e001f7d012b1e84a1b","title":"Event Naming and Structure","order":1},{"id":"seed_8cd264c12d8f618e9fa890f90276511f","title":"Raising and Handling Events","order":2},{"id":"seed_4b1e51e0882735e5990ed327bfe60ca0","title":"Events for Integration","order":3}]},{"id":"seed_6d280f72b9c1345121ea5551b247b5cf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Services","order":7,"contentType":"LEARNING","contentSlug":"domain-services","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_fcdd9c80fd0f2bf7e3274d9da64074f1","title":"When Logic Doesn't Belong to Entities","order":0},{"id":"seed_62a4da0cb19982e00911589b91377c0c","title":"Domain Service Characteristics","order":1},{"id":"seed_128f19fe2409e5f9d3a981efcbe8ad6c","title":"Domain Service vs Application Service","order":2},{"id":"seed_fdc40c3789b26b27cd5fc2a050916942","title":"Design Guidelines for Domain Services","order":3}]},{"id":"seed_b056fdc7aaf01d3d0a66f5e54b9eb2da","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Bounded Contexts","order":8,"contentType":"LEARNING","contentSlug":"ddd-bounded-contexts","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_6c060fd6554b7bb09f57860df9959995","title":"What is a Bounded Context","order":0},{"id":"seed_96aa10b267c5d4d024ff9207e73f2037","title":"Context Boundaries","order":1},{"id":"seed_1869cf6b696c081d154d73cc678ca278","title":"Context Mapping","order":2},{"id":"seed_4b9f173c69cd7e568181b481f4da02b1","title":"Integration Between Contexts","order":3}]},{"id":"seed_e969405d3072826fe3288b0faed809a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Why Architecture Matters","order":1,"contentType":"LEARNING","contentSlug":"why-architecture-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_21f7b2b5b11d02468f0cb63f30d2a87d","title":"Architecture as Structural Decisions","order":0},{"id":"seed_ce25f9ccc61daafa493d36f9e3d92ab8","title":"Cost of Poor Architecture","order":1},{"id":"seed_a2a78c4a542eaa78d8827f529335d3e8","title":"Architecture and Testability","order":2},{"id":"seed_1bb28599b9caa8ef65e5d80e7ae0b1b2","title":"Architecture and Change","order":3}]},{"id":"seed_9d88a999847f23611ddf1f33560c7b85","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Traditional Layered Architecture","order":2,"contentType":"LEARNING","contentSlug":"traditional-layered-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_274e3d071463f1455c2b376b4e6b7516","title":"Presentation, Business, Data Layers","order":0},{"id":"seed_4cd95857018e73b47b5413c017d22640","title":"Layer Dependencies","order":1},{"id":"seed_92900700f8a28a70795705511c519ccf","title":"Benefits and Limitations","order":2},{"id":"seed_0ddc0662fe1967208c4430e5ae4ed87e","title":"When Layered Architecture Works","order":3}]},{"id":"seed_87776ac6b08a2cf2dee32ce800992d94","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Hexagonal Architecture","order":3,"contentType":"LEARNING","contentSlug":"hexagonal-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_d56baf3163e701716f5c4ec300d15886","title":"Core Domain at Center","order":0},{"id":"seed_deb18e97459617bb4ed9bb0de4fe9953","title":"Ports as Interfaces","order":1},{"id":"seed_14e0c3582a07a1010679b0cfa68e763f","title":"Adapters as Implementations","order":2},{"id":"seed_71bb6dfebd9003eda004058c5f68c4f7","title":"Inversion of Dependencies","order":3}]},{"id":"seed_e36d409ac217efeb3bd628f702a4183b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Onion Architecture","order":4,"contentType":"LEARNING","contentSlug":"onion-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_816da432552d55683e46873fd9691c64","title":"Core at Center, Infrastructure at Edge","order":0},{"id":"seed_0fdfe52eb4b4bac052f04f3ecb4e9fd1","title":"Layers and Dependencies","order":1},{"id":"seed_6467a3ae6be52b5db4d4b98329e6acba","title":"Comparison with Hexagonal Architecture","order":2},{"id":"seed_537ea1861d043b20a63eb5993e0287b6","title":"Onion Architecture in Practice","order":3}]},{"id":"seed_900e5754b9841ac60ab72998bb78ec1a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Clean Architecture","order":5,"contentType":"LEARNING","contentSlug":"clean-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_e9d49226de5c0318a3b4dc102877f52c","title":"Uncle Bob's Clean Architecture","order":0},{"id":"seed_8e91c6094bf7dcc32d82d965b611fc2b","title":"The Dependency Rule","order":1},{"id":"seed_341dc40c171f1e9761c583954422bed5","title":"Entities, Use Cases, Adapters, Frameworks","order":2},{"id":"seed_4daecf6d53905f9cebfe312c59dd4597","title":"Clean Architecture Structure","order":3}]},{"id":"seed_47eac867e3933c50925f76a2d5126e1d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Choosing An Architecture","order":6,"contentType":"LEARNING","contentSlug":"choosing-an-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_19dc738b6b75528ce3f62f156a041f0a","title":"Architecture Comparison: A Comprehensive Analysis","order":0},{"id":"seed_3b81e4909b2ac1df46081ec1d93b05e1","title":"Project Characteristics and Architecture Fit","order":1},{"id":"seed_200eb01c5e512ed06fc4c230f90bc5f4","title":"Evolution of Architecture: Managing Change Over Time","order":2},{"id":"seed_8b9de0eaa581b36bf5a75dc3d8069e59","title":"Practical Considerations: Implementation and Pitfalls","order":3}]},{"id":"seed_195c934cc23a12776a5750015e53d3a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Package Module Organization","order":7,"contentType":"LEARNING","contentSlug":"package-module-organization","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_e4fb60f8bc93476bc698a54a06887c2a","title":"Organizing Code by Layer vs Feature","order":0},{"id":"seed_9d7568fbac7e6550a23e66214a2fe1ff","title":"Package Coupling and Cohesion","order":1},{"id":"seed_4a415cd65962f049d2c0175db983a424","title":"Module Boundaries","order":2},{"id":"seed_0277249862e6320dd7ed92491d4c06a1","title":"Practical Organization Strategies","order":3}]},{"id":"seed_d7bbee67563121e8eac197c6b87d4448","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"What Is A Good Api","order":1,"contentType":"LEARNING","contentSlug":"what-is-a-good-api","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_4dd350194e6ef9093ad2d57f87d50ff4","title":"API as Contract","order":0},{"id":"seed_57e1cbc04031945ee14ae403d894527d","title":"Usability Principles","order":1},{"id":"seed_4b2a1ad792b6ffe29e42e5f1cddf37b6","title":"Consistency in API Design","order":2},{"id":"seed_4c0badea4e3bbd91c93968bfc075610b","title":"API Design Process","order":3}]},{"id":"seed_0568d519482b1bc1d4ac631c2e07601e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Method Signature Design","order":2,"contentType":"LEARNING","contentSlug":"method-signature-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_98b07a3e307cc17881df8a9911dabb61","title":"Method Naming Conventions","order":0},{"id":"seed_8744b3ce268d5959ab56cd8ca8b54e24","title":"Parameter Design","order":1},{"id":"seed_fccf7ea9d8a2daa608b96b064f18a1cb","title":"Return Type Design","order":2},{"id":"seed_ab334f13567bd62a943e5ce5bac9b8f2","title":"Overloading Guidelines","order":3}]},{"id":"seed_f8350b1533548ee392cba6848ef6fd41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Error Handling In Apis","order":3,"contentType":"LEARNING","contentSlug":"error-handling-in-apis","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_c95560913965f9ac6af5b772fb1a5787","title":"Exceptions vs Error Codes","order":0},{"id":"seed_9f91ef93e172f5f912bd93d8dd13b4be","title":"Checked vs Unchecked Exceptions","order":1},{"id":"seed_bc76c004176a26930158ed46d23d3a5c","title":"Error Response Design","order":2},{"id":"seed_f35c684e1b14de57e3989399c5a6f315","title":"Error Documentation","order":3}]},{"id":"seed_591ee39701eb3dbdeb8317a46f343918","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Api Versioning","order":4,"contentType":"LEARNING","contentSlug":"lld-api-versioning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_fa1b4794ddbf1c20881dfae07e9f28ef","title":"Why Versioning Matters","order":0},{"id":"seed_a2851d737e0bd059dec49e595208b9de","title":"Versioning Strategies","order":1},{"id":"seed_5fe93f388f3b79f187b68806148919cf","title":"Breaking vs Non-Breaking Changes","order":2},{"id":"seed_33d715dd0b452e2bcc1584991ebfa431","title":"Deprecation Handling","order":3}]},{"id":"seed_283d4e739aa1cad00c72f68973fa990d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Restful Api Design Principles","order":5,"contentType":"LEARNING","contentSlug":"restful-api-design-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_2959887106eabfd7e6a2ff19c6ce6b6f","title":"REST Fundamentals","order":0},{"id":"seed_da5316474bb0406b3fd3b66bf018ff4a","title":"Resource Naming","order":1},{"id":"seed_975db846e115fad8d3aebf23a60464b8","title":"HTTP Methods and Semantics","order":2},{"id":"seed_08b59a342f14168e721f13711ea762d5","title":"Status Codes and Responses","order":3}]},{"id":"seed_ff0cf622c7e78232d3aff5b8627dbe15","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Dto Design","order":6,"contentType":"LEARNING","contentSlug":"dto-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_60aa7670a6bfab877adedd3665bfc027","title":"What Are DTOs","order":0},{"id":"seed_71165b7a0fc93adb2747c2202d34b362","title":"DTO vs Domain Objects","order":1},{"id":"seed_b6ea2cfd9833edd600a14e3e5a0dc612","title":"DTO Mapping Strategies","order":2},{"id":"seed_8079da33ef9d8b7037da190d86b167e4","title":"DTO Best Practices","order":3}]},{"id":"seed_58122aff377e2df7afa4cbde77d60384","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Api Documentation","order":7,"contentType":"LEARNING","contentSlug":"lld-api-documentation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_70f471c3badfdd26752eb8f2c5ff92f9","title":"Self-Documenting APIs","order":0},{"id":"seed_05704964293292cf5351263b1d6ca4d0","title":"Documentation Tools and Formats","order":1},{"id":"seed_25686fc180399da40543bea2f4e540fd","title":"Documentation Best Practices","order":2},{"id":"seed_6d03998765d3f737b568a89870e9b1bc","title":"Keeping Documentation Current","order":3}]},{"id":"seed_b4510f16e895b628bec703e1c44bb548","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Persistence Layer Responsibilities","order":1,"contentType":"LEARNING","contentSlug":"persistence-layer-responsibilities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_45426ecd88de11798223f78c781395ed","title":"Data Storage and Retrieval","order":0},{"id":"seed_146996b2b8adbdaa0e2969245aef5b6b","title":"Abstracting Storage Details","order":1},{"id":"seed_e5b81a4690e2abafb503988c4f4b3f01","title":"Transaction Management","order":2},{"id":"seed_906320ad2e22e9e4b2f98e12f34f0692","title":"Query Optimization","order":3}]},{"id":"seed_dc4603e10f4c03575065d7c01f8b9e18","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Repository Pattern Deep Dive","order":2,"contentType":"LEARNING","contentSlug":"repository-pattern-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_492e5809fc4da24477253be187e30f02","title":"Repository as Collection Abstraction","order":0},{"id":"seed_96b55e927a175a2bac5a84c2c89f5cad","title":"Generic vs Specific Repositories","order":1},{"id":"seed_e9a8a969bc99363c626011542312bdc2","title":"Repository Implementation","order":2},{"id":"seed_227430fe6bb114868f493e9d47a7ad40","title":"Unit Testing Repositories","order":3}]},{"id":"seed_87bb1cc41328a11ed417c0934effa700","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Access Object Dao Pattern","order":3,"contentType":"LEARNING","contentSlug":"dao-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_ce58046c327b88f325400e770563c6df","title":"DAO Definition and Purpose","order":0},{"id":"seed_c41e929257e984ac7e17cd8cda0bf363","title":"DAO vs Repository","order":1},{"id":"seed_c5b85d3a23470292e0bcc3f0d9c49b46","title":"DAO Implementation","order":2},{"id":"seed_53ec85b3018273b0551aa3274f884aea","title":"When to Use DAO","order":3}]},{"id":"seed_d8528ff184ec6d80f953cc86dff376d7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Unit Of Work Pattern","order":4,"contentType":"LEARNING","contentSlug":"unit-of-work-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.225Z","pages":[{"id":"seed_6a359b3afc83976262170462d493745d","title":"Managing Multiple Changes","order":0},{"id":"seed_c9b33d253566f3a2c03cd29e2c5b4f48","title":"Transaction Boundaries","order":1},{"id":"seed_5698210cb5ce73e91032f53bcbcd6992","title":"Unit of Work Implementation","order":2},{"id":"seed_7f02fe443f5c58a4b21cbf8f528f3654","title":"Integration with Repositories","order":3}]},{"id":"seed_c98805d55ac5cb5e70498370a1223eba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Orm Considerations","order":5,"contentType":"LEARNING","contentSlug":"orm-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_8bd59ddfdf6c23b58770593dd47c72b2","title":"What is ORM","order":0},{"id":"seed_4e6439b2e5fe2b60571cf6135a2c00fd","title":"ORM Benefits and Trade-offs","order":1},{"id":"seed_2639886733db66013a4771ecd2bcc997","title":"Mapping Strategies","order":2},{"id":"seed_4f525e590eb07ea8c4a05cc1a44cfa2e","title":"Performance Considerations","order":3}]},{"id":"seed_0281bee3cbc4ea9b5fe9a5441b08068b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Modeling For Lld","order":6,"contentType":"LEARNING","contentSlug":"data-modeling-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_e4e564631f46e91a12187158e4d24929","title":"Entity Relationships in Code","order":0},{"id":"seed_b794f6051b149e41bb358941d1a0593b","title":"One-to-One, One-to-Many, Many-to-Many Relationships","order":1},{"id":"seed_7c769f3d6d316ea5a0b1f753b8ab3c48","title":"Lazy vs Eager Loading","order":2},{"id":"seed_6283bed82081debe847c10bbd564170d","title":"Normalization vs Denormalization Trade-offs","order":3}]},{"id":"seed_4962bf5ab4784167e4ee6f1a693379ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Database Transactions At Lld Level","order":7,"contentType":"LEARNING","contentSlug":"database-transactions-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_1e631a10943b0263c717206c15be0f73","title":"ACID Properties","order":0},{"id":"seed_d1f8795686288e5de54f3280792ab09d","title":"Transaction Boundaries in Code","order":1},{"id":"seed_36f6e18be76dd44b696ec4262af7c507","title":"Isolation Levels","order":2},{"id":"seed_0906e8292bff4c2d38a5f3cf1309617f","title":"Handling Transaction Failures","order":3}]},{"id":"seed_bea5f9bc1d6e29035e6e8e5dbbffc261","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Why Caching Matters","order":1,"contentType":"LEARNING","contentSlug":"lld-why-caching-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_b77302054be2fa99625f675d4d784e87","title":"Performance Benefits","order":0},{"id":"seed_ece66663e7e01e776e7b2e9c4c701213","title":"Reducing Resource Consumption","order":1},{"id":"seed_32c5c8d59cc058753bd83b6d99386fa0","title":"Caching Trade-offs","order":2},{"id":"seed_1841fb051d578e2095a9b5de4887f9ab","title":"When to Cache","order":3}]},{"id":"seed_10ef959e8938013bc82b751fc288c095","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Patterns","order":2,"contentType":"LEARNING","contentSlug":"cache-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_3c195b6d6e4c306a09ef237c7d3f4dc3","title":"Cache-aside Pattern (Lazy-loading Cache)","order":0},{"id":"seed_e1fb574749f30e9e0f49b5c62f4b2ae0","title":"Read-Through Cache Pattern","order":1},{"id":"seed_ccffd021b12ee9a6aa551f52cb5a8a7d","title":"Write-Through Cache Pattern","order":2},{"id":"seed_5019c943127fed287ca6fdbd983b65ea","title":"Write-behind Cache Pattern (Write-back)","order":3}]},{"id":"seed_0d28bdca3ae62b9f4e68fd8bcd4edb8d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Design Considerations","order":3,"contentType":"LEARNING","contentSlug":"cache-design-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_41eac1b57178a0b30da4808fcfa82752","title":"Cache Key Design","order":0},{"id":"seed_d9fdc1401c12b2c61e6da93de3754a2a","title":"Cache Size and Eviction Policies","order":1},{"id":"seed_0a45280dc2bb580e50b70dea249688a7","title":"Distributed vs Local Cache","order":2},{"id":"seed_3c7a53242aefbb432ec286466137fa55","title":"Cache Warming Strategies","order":3}]},{"id":"seed_a424d8b598bb6cca682da8a79b89aed3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Testing And Monitoring","order":4,"contentType":"LEARNING","contentSlug":"cache-testing-and-monitoring","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_7b0ffc37ca8e80ed60db975fde28cd14","title":"Testing Cached Behavior","order":0},{"id":"seed_cdf3f1b6cbc3449715c91b487cc60df7","title":"Cache Hit/Miss Metrics","order":1},{"id":"seed_c8d0a53bc1778c1543769ccfc3b0fc74","title":"Debugging Cache Issues","order":2},{"id":"seed_3e413ac73993cfa5ac1a8128ce7864fb","title":"Cache Performance Tuning","order":3}]},{"id":"seed_4b3cd8a6c5cc668e960c80db504cef49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Cache Invalidation Strategies","order":1,"contentType":"LEARNING","contentSlug":"lld-cache-invalidation-strategies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_7cd1d13e4f84ece910f8d356faf15e04","title":"Time-Based Expiration","order":0},{"id":"seed_61e6716095c6d356e0df03304a807cc0","title":"Event-Based Invalidation","order":1},{"id":"seed_5360297a7a98aa295a83d66b9470c686","title":"Cache Versioning","order":2},{"id":"seed_3b58192265200b7910e82db334a79266","title":"Dealing with Stale Data","order":3}]},{"id":"seed_49efc881b04b3a49d57201aa5dd4ea32","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Caching In Object Design","order":2,"contentType":"LEARNING","contentSlug":"caching-in-object-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_09f42d345b4d721c66ababc3191e6760","title":"Memoization Pattern","order":0},{"id":"seed_b9abc3b9e0abedc0374238190d1f7902","title":"Lazy Loading with Caching","order":1},{"id":"seed_03d34df9645f45dd975c2932c3dfa558","title":"Caching Computed Properties","order":2},{"id":"seed_d13ce4a3b452a60e24d4e1855270eed4","title":"Cache as Collaborator","order":3}]},{"id":"seed_b82e80ae95c58d41ffe5c6870b9b59f2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Introduction To Event Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-event-driven-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_d5c5f9b9f2379a9ba14f0e0f3ee51fd0","title":"What is Event-Driven Design","order":0},{"id":"seed_730f2b56caa7c09b1a3e29af674be4df","title":"Events vs Commands","order":1},{"id":"seed_697105e4bddd69169b0497e1d655a810","title":"Benefits of Event-Driven Approach","order":2},{"id":"seed_e0c635b492fe081f115a678cae2cf2b1","title":"When to Use Events","order":3}]},{"id":"seed_8f79c7e0b23b60ea393ad98d03690b38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Domain Events","order":2,"contentType":"LEARNING","contentSlug":"lld-event-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_274e2853545906b23ead8be4728de36a","title":"Recap from DDD Chapter","order":0},{"id":"seed_6845178ae0735d91f160da68607c9e77","title":"Designing Domain Events","order":1},{"id":"seed_2456a1e6bf73574131718ec625fe7925","title":"Event Naming and Structure","order":2},{"id":"seed_e07b22e7a88b2a3c1988b99f14aaba4e","title":"Immutable Event Objects","order":3}]},{"id":"seed_06bbd72d0bb249a33271106d683547fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Handlers","order":3,"contentType":"LEARNING","contentSlug":"event-handlers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_78888e3578c37a9b00bb8f98ce26ed85","title":"What is an Event Handler","order":0},{"id":"seed_bf9ecf0fd6b820d1859006339adc01b8","title":"Handler Design Principles","order":1},{"id":"seed_3df3282392c1e818de142673cbc08579","title":"Single vs Multiple Handlers","order":2},{"id":"seed_7ffe58b7f9d49de4babf24e5f6e9e7bb","title":"Handler Ordering","order":3}]},{"id":"seed_b2e883e2e24a18967d8a348011cfee38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Publish Subscribe Pattern","order":4,"contentType":"LEARNING","contentSlug":"publish-subscribe-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_eb66c86061ecb09002339aa30e9ba166","title":"Publisher and Subscriber Roles","order":0},{"id":"seed_26cd0929a07908f57eff778c86f0a39a","title":"Event Bus/Dispatcher","order":1},{"id":"seed_2ae9527cdc2361a7f0be643c9350bf95","title":"Coupling and Decoupling","order":2},{"id":"seed_82b67949af3dffeaa87de9a3283f23f9","title":"Implementation Approaches","order":3}]},{"id":"seed_109ac57bdeca7226070a67990d371774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Sourcing Basics","order":5,"contentType":"LEARNING","contentSlug":"event-sourcing-basics","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_8c50cd98efcc90a41cbd94f3cdc6595f","title":"What is Event Sourcing","order":0},{"id":"seed_c25c25c08823dfc6d5eedadd836a1fa7","title":"Events as Source of Truth","order":1},{"id":"seed_73f41881e821e035e538966fb0628670","title":"Reconstructing State from Events","order":2},{"id":"seed_81330f9e8de3a5de556260871b32c67f","title":"Event Sourcing Trade-offs","order":3}]},{"id":"seed_8d837d5960373ce745a8f934a8c7ca36","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Driven Integration","order":6,"contentType":"LEARNING","contentSlug":"event-driven-integration","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_596bcd9b4642a6d77f1743b1b30f3f83","title":"Events Across Boundaries","order":0},{"id":"seed_7a86458c5ee5d3d4c00dceff0586172d","title":"Event Serialization","order":1},{"id":"seed_28a85bb88b293bcb09f3b56491703ae8","title":"Event Versioning","order":2},{"id":"seed_d6b70e5f2a506a35b432f20519df56a0","title":"Integration Patterns","order":3}]},{"id":"seed_ed06adfc099b4102e2b52095d918f083","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Testing Event Driven Designs","order":7,"contentType":"LEARNING","contentSlug":"testing-event-driven-designs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_58d841b8fa62b59fa9a52f5e82d71f04","title":"Testing Event Raising","order":0},{"id":"seed_ba5240417e07b6161d5fc09872ec5132","title":"Testing Event Handling","order":1},{"id":"seed_a2f6320d44153e92981d12c3a51d61e2","title":"Integration Testing with Events","order":2},{"id":"seed_88ca68557d79cb60894ca2af259fbcb9","title":"Event Debugging","order":3}]},{"id":"seed_c1ad9b422bfa797c7b9e020e99593a13","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"What Is Resource Management","order":1,"contentType":"LEARNING","contentSlug":"what-is-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_49c0b402adde5aac04c17111c30faf41","title":"Definition of Resources","order":0},{"id":"seed_6705d004266874e989eb5f76f06915c7","title":"Types of Resources: Memory, Files, Connections, Handles","order":1},{"id":"seed_72c1b6c5b13fdd9d6d4b2b60eaf0d9f0","title":"Resource Lifecycle","order":2},{"id":"seed_af26fd0ccf70a81fdc7bc6dca92f7fbb","title":"Why Resource Management Matters","order":3}]},{"id":"seed_f5f13bebb6d4c714f5a01df235277b70","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Object Lifecycle Management","order":2,"contentType":"LEARNING","contentSlug":"object-lifecycle-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_c3054cedccf8b723c746a3aeff9a5db2","title":"Creation, Use, and Disposal Phases","order":0},{"id":"seed_15cd689d189193ba66aa0264ed15c52e","title":"Deterministic vs Non-deterministic Cleanup","order":1},{"id":"seed_0203130e62de0ea910f24e51c552f23f","title":"Finalizers and Their Problems","order":2},{"id":"seed_4a5c2e783817c76815cf97b8121b015b","title":"Explicit Cleanup Methods","order":3}]},{"id":"seed_8d20adecb3526f7ee11180a1e9c34eb1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Disposable Pattern","order":3,"contentType":"LEARNING","contentSlug":"disposable-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_d810b1d358e913977cc31b0b2d3fea9f","title":"Disposable Interface Concept","order":0},{"id":"seed_84ad126b31757095721f837dd2f71c34","title":"Using Disposable Objects Safely","order":1},{"id":"seed_874bc6950c9728ebf611003520874a79","title":"Resource Cleanup Guarantee","order":2},{"id":"seed_ab8b7c7c74c56ef995ceb79c15b5448e","title":"Nested Disposables","order":3}]},{"id":"seed_cf0472cf09370350a71f37aa0aa85cd8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Connection Pooling","order":4,"contentType":"LEARNING","contentSlug":"lld-connection-pooling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.226Z","pages":[{"id":"seed_3c141cc959a4c13c061b50f64f0b42ab","title":"Why Pool Connections","order":0},{"id":"seed_224ba89691884c7c8b5eeb9bc9c442b8","title":"Pool Design Considerations","order":1},{"id":"seed_79a91340ad922bba556a0772d518a438","title":"Pool Size Management","order":2},{"id":"seed_0d76863b2eee794abf199a57afe22515","title":"Returning Connections to Pool","order":3}]},{"id":"seed_b0764df0bb8da458e56a2b2294848694","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Memory Management Considerations","order":5,"contentType":"LEARNING","contentSlug":"memory-management-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_1bf1b841c5fe7b3f757dfdcdf3c33baf","title":"Stack vs Heap Memory","order":0},{"id":"seed_3807e6c49245b738c2352ae7042f28fb","title":"Object References and Garbage Collection","order":1},{"id":"seed_5a3e4e3f307540d7ddd4d9696cfec359","title":"Memory Leaks in Managed Languages","order":2},{"id":"seed_f00f8fe51730a0dd2495c273056423a8","title":"Weak References","order":3}]},{"id":"seed_f19607253ce9792bb396e69a77eed032","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Resource Acquisition Patterns","order":6,"contentType":"LEARNING","contentSlug":"resource-acquisition-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_f451590a99ee37fd4eccce5e64658ac4","title":"RAII: Resource Acquisition Is Initialization","order":0},{"id":"seed_75049ef5c70d4bb180409f07c7430767","title":"Try-with-resources and Using Patterns","order":1},{"id":"seed_8a12198febcb5ad4efbeab824c4ca2fd","title":"Scope-Based Resource Management","order":2},{"id":"seed_4e1b195f38eecf4d96f35242535490ab","title":"Factory Methods for Resources","order":3}]},{"id":"seed_1605a58580415b26519b63986566f30e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Testing Resource Management","order":7,"contentType":"LEARNING","contentSlug":"testing-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_569ff07ae153d3cff8af9cb17ff1d986","title":"Verifying Resource Cleanup","order":0},{"id":"seed_0860c7364d0b6a9b0e9408238e9aa077","title":"Detecting Resource Leaks","order":1},{"id":"seed_90082a9a12fcbc25e0ef794c831aca8f","title":"Mocking External Resources","order":2},{"id":"seed_a92ad54898adf9c21c3b0bfc7927ab7a","title":"Integration Testing with Resources","order":3}]},{"id":"seed_4f4f61713f44a4748f5dcacd7704044d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Errors Vs Exceptions","order":1,"contentType":"LEARNING","contentSlug":"errors-vs-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_18a31fe39d0172c444c9e4c286485ede","title":"What is an Error","order":0},{"id":"seed_0a1f1303c58dedb3bde24c67c73199db","title":"What is an Exception","order":1},{"id":"seed_170a4ed313a98637f0c5c8ea68d04b5a","title":"When to Use Exceptions","order":2},{"id":"seed_6429c72a79018ecd41dfccef20d9bf6c","title":"Error Handling Philosophy","order":3}]},{"id":"seed_f139140e44bc8284f3283f15b28c6789","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Hierarchy Design","order":2,"contentType":"LEARNING","contentSlug":"exception-hierarchy-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_7d8e2feea1d9f864b35c801f60691f23","title":"Base Exception Classes","order":0},{"id":"seed_bacb82b86765aa047411a5141ea6026b","title":"Custom Exception Classes","order":1},{"id":"seed_a16b496b6b6f1f78d573c1b990ac89e1","title":"Exception Categorization","order":2},{"id":"seed_4da646e268c37126ec539dcb9dfa0986","title":"Naming Conventions","order":3}]},{"id":"seed_59376056950b4eb77ae473f68b7e84f9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Checked Vs Unchecked Exceptions","order":3,"contentType":"LEARNING","contentSlug":"checked-vs-unchecked-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_8feb2891916b8286b814548dee366b28","title":"Checked Exceptions and Their Trade-offs","order":0},{"id":"seed_9486f7ae305c438e83f5db8312b1f1f1","title":"Unchecked Exceptions and Their Use","order":1},{"id":"seed_ed76ade460b3a8a6085b7e895078c864","title":"Language Differences in Exception Handling","order":2},{"id":"seed_947c54a8442b5cb238bbca705d2c4b7c","title":"Choosing Exception Types","order":3}]},{"id":"seed_90284d6a08cbb23a1d229a429e4d2be1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error States And Result Types","order":4,"contentType":"LEARNING","contentSlug":"error-states-and-result-types","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_753697bd3603c0d44d6b670d4c3d68aa","title":"Error States vs Exceptions","order":0},{"id":"seed_67bd2164687de4c98bbfb2eb14f91cd2","title":"Result/Either Type Pattern","order":1},{"id":"seed_37ba2a11036b0b1c307af4ac16f544cd","title":"Option/Maybe Type Pattern","order":2},{"id":"seed_15d08be86cdd85a4f13ffcc7e460b501","title":"When to Use Result Types","order":3}]},{"id":"seed_1eff0831eadd7f32c8dc4eaefea7dbad","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Handling Best Practices","order":5,"contentType":"LEARNING","contentSlug":"exception-handling-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_fad69a28175bad1178b5e5b7a26bd760","title":"Catch Specific Exceptions","order":0},{"id":"seed_fea6cb73410cdff9c68535e543cbf679","title":"Don't Swallow Exceptions","order":1},{"id":"seed_3e86db85ebf5d1a37b8862f49208b865","title":"Exception Wrapping and Chaining","order":2},{"id":"seed_61a8a6e721dbd3cf6085bed13ef09099","title":"Clean-up in Exception Handlers","order":3}]},{"id":"seed_9c292ae3f643e1f08e1ee54aa95a8e58","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Validation And Defensive Programming","order":6,"contentType":"LEARNING","contentSlug":"validation-and-defensive-programming","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_ddb1f2c51fc15e1375906e47e5787e32","title":"Input Validation Strategies","order":0},{"id":"seed_bd2c82cea4026ac2c64b51d04849ce2e","title":"Guard Clauses","order":1},{"id":"seed_9102fa1f66ffe35dbc4499b810b4a7c5","title":"Assertions vs Validation","order":2},{"id":"seed_a0c8835bf107b34ed5cfca5892f2cea6","title":"Fail-Fast Principle","order":3}]},{"id":"seed_f20ac222f72ba6bea1f48655fcdfa8d2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error Handling At Boundaries","order":7,"contentType":"LEARNING","contentSlug":"error-handling-at-boundaries","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_394f052307e80c72e13434cc4946424a","title":"Exception Translation at Layers","order":0},{"id":"seed_1c406a567936054713d2a28fcafb889b","title":"User-Facing Error Messages","order":1},{"id":"seed_8c06a25903ac892902c2123847a84c42","title":"Logging Errors Appropriately","order":2},{"id":"seed_f65204c2450a050fec1ef7b49bee483f","title":"Error Recovery Strategies","order":3}]},{"id":"seed_f7e1e7a381aa053c8ed9cf96ae771aee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Why Testing Matters For Lld","order":1,"contentType":"LEARNING","contentSlug":"why-testing-matters-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_13d1e6324c48002a57549ba30024ca73","title":"Testing as Design Feedback","order":0},{"id":"seed_df50df9a5942f3db43981165aac4e15c","title":"Testing for Confidence","order":1},{"id":"seed_71c054aa9a44165d15465b2c8cbfd205","title":"Testing and Maintainability","order":2},{"id":"seed_a27ad3309bf1910a19dcb292b57197e6","title":"TDD and Design Quality","order":3}]},{"id":"seed_40ff9cee014cb4b748bc0a1344050c02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Unit Testing Fundamentals","order":2,"contentType":"LEARNING","contentSlug":"unit-testing-fundamentals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_7d0379cfefcfb9998504d546aee6bb63","title":"What Is a Unit Test","order":0},{"id":"seed_2bdbfee394a35e725af36d7aee7f3ea3","title":"Test Structure: Arrange, Act, Assert","order":1},{"id":"seed_ceaf1e29c480a2760d23482ee1e4f8fc","title":"Test Naming Conventions","order":2},{"id":"seed_87eba113e0e165dbe85c153492402b37","title":"Test Organization","order":3}]},{"id":"seed_069c54679b4961f071407080de0a8040","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Doubles Mocks Stubs Fakes","order":3,"contentType":"LEARNING","contentSlug":"test-doubles-mocks-stubs-fakes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_9a65014d39abf7c7be849f093c551664","title":"Stubs — Pre-Programmed Returns","order":0},{"id":"seed_7b336af0f103f3ef9e8ebf3192f89fe5","title":"Mocks — Verifying Interactions","order":1},{"id":"seed_221e162554cb530717b13768cc0fea08","title":"Fakes — Working Implementations","order":2},{"id":"seed_891c46fc7d05216f8df923b873989e4f","title":"Choosing the Right Double","order":3}]},{"id":"seed_0650cdf2c09e6c2dd19ea812fa05f4b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Mocking Dependencies","order":4,"contentType":"LEARNING","contentSlug":"mocking-dependencies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_ce48dc5c4ed424b9d4d18bdb48adfc2b","title":"Why We Mock Dependencies","order":0},{"id":"seed_d97c330c62597bac4ef40ddd35b408bd","title":"Mocking Frameworks Overview","order":1},{"id":"seed_d6d76ce500c9b2a931a7e2c45e273cdb","title":"Mocking Best Practices","order":2},{"id":"seed_1265bf40e3452a7eddb6269a912e033a","title":"Over-Mocking Pitfalls","order":3}]},{"id":"seed_4b048089a091123945ef416a1705bc45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Driven Development Tdd","order":5,"contentType":"LEARNING","contentSlug":"test-driven-development-tdd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_42c0fc5c13a982c01b8b4cd30c33b5fd","title":"TDD Cycle: Red, Green, Refactor","order":0},{"id":"seed_1c7633b960b4c825317e44e47933006e","title":"TDD Benefits for Design","order":1},{"id":"seed_ae886ba8545042cfb6c7f909765ffe3e","title":"Writing Tests First","order":2},{"id":"seed_1cea9547f3fcbcccf815755eaabc6f43","title":"TDD in Practice","order":3}]},{"id":"seed_2b456057eff2dfda7b9bb70fcf99e109","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Testing Private Methods And Internals","order":6,"contentType":"LEARNING","contentSlug":"testing-private-methods-and-internals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_1a55e4b7fdb234cbf7a491aba415b925","title":"Should We Test Private Methods?","order":0},{"id":"seed_7c825cca8d9a3097010f8ce396d6b8aa","title":"Testing Through Public Interface","order":1},{"id":"seed_d48a6b764f040264ffc36073152f34a9","title":"When to Make Methods Testable","order":2},{"id":"seed_7833578511d56d3b0fe5aba131750182","title":"Design for Testability","order":3}]},{"id":"seed_ad95c3a9dddba788da8eed039a3c9910","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Integration Testing At Lld Level","order":7,"contentType":"LEARNING","contentSlug":"integration-testing-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_c393d5edabfeb28c4825f755f614a71e","title":"What is Integration Testing","order":0},{"id":"seed_87236fa1f91276e0ed9171088aa63632","title":"Testing Component Interactions","order":1},{"id":"seed_e127919e1b75a6c15e4ee705bddf57a1","title":"Database Integration Testing","order":2},{"id":"seed_9349737f6ee78f0513358728348523d4","title":"Integration Test Strategies","order":3}]},{"id":"seed_deff3612e1ba63663931076321b23df5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Code Coverage And Test Quality","order":8,"contentType":"LEARNING","contentSlug":"code-coverage-and-test-quality","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_cbb0924cc72afe8ce38381cc62159a28","title":"What is Code Coverage","order":0},{"id":"seed_795189cdb25ca21a824da41da17e243c","title":"Coverage Types: Line, Branch, Path","order":1},{"id":"seed_03dea71cb627e4bacc31c29b46207a6d","title":"Coverage Limitations","order":2},{"id":"seed_ffc6802fb23d705ecf2a5ddb52b4bbab","title":"Meaningful vs. Metric-Driven Coverage","order":3}]},{"id":"seed_1861177da832c9f94511a739d5aa211a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Logging In Lld","order":1,"contentType":"LEARNING","contentSlug":"logging-in-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_28481e957f792ec902154f86b4cf2735","title":"Why Logging Matters","order":0},{"id":"seed_49172bde5a90528eb8fa3d275c1bb762","title":"Logging Levels and When to Use Them","order":1},{"id":"seed_9582f6f4775986112367be9414df7f91","title":"What to Log","order":2},{"id":"seed_e0afbd067db99f55760e2b27b87b1f51","title":"Structured Logging","order":3}]},{"id":"seed_6b82f19778d58182faafc6495ed4ceec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Observability Design","order":2,"contentType":"LEARNING","contentSlug":"observability-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.227Z","pages":[{"id":"seed_b7aad1ce17f451494725a473f2127fdd","title":"Designing Observable Classes","order":0},{"id":"seed_78324e5a49b99dab8076d3617e1923f2","title":"Metrics and Monitoring Hooks","order":1},{"id":"seed_b3977048cfed2caf9bbfdf6c48d0ae5d","title":"Tracing Considerations","order":2},{"id":"seed_34dd5deab8f7f452bd9df24780eaa0ec","title":"Debug-Friendly Design","order":3}]},{"id":"seed_b57dcef5420a9f6d1d2a06a59a78bbec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Security Patterns","order":3,"contentType":"LEARNING","contentSlug":"security-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_7592fea87d503d9af42b929649ae714f","title":"Authentication Design Patterns","order":0},{"id":"seed_84ab3301ed50500a6b07213fb13341e9","title":"Authorization Design Patterns","order":1},{"id":"seed_e576511e3ca8efb8b708f8bb5672beda","title":"Secure Object Design","order":2},{"id":"seed_69c63170b6e1369191520a665ba77ff2","title":"Input Sanitization","order":3}]},{"id":"seed_9fb8d235292aa1c55ffc4bf05f3f8087","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Secrets Management","order":4,"contentType":"LEARNING","contentSlug":"lld-secrets-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_29362fbccb5b4234e8543dd686861b27","title":"Handling Sensitive Data in Code","order":0},{"id":"seed_da7c70066a3a6a92ac64e6b25d8f2c07","title":"Configuration vs Secrets","order":1},{"id":"seed_cb99c57a6461f0a2ef2ba670ea0f0fb4","title":"Secrets Injection","order":2},{"id":"seed_3704c2aafe66b154f180ece7eeea82bc","title":"Avoiding Secrets in Logs","order":3}]},{"id":"seed_97047b89732bd7130a4166bd65e49aec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Configuration Management","order":5,"contentType":"LEARNING","contentSlug":"lld-configuration-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_ab3917e2561efda620210f36250df3db","title":"Hard-Coded vs Configurable Values","order":0},{"id":"seed_70be1efb25a2baac3c7132c09531169b","title":"Configuration Objects and Classes","order":1},{"id":"seed_12d73937ded6cc740e851d09721c90f0","title":"Environment-Based Configuration","order":2},{"id":"seed_579c9aa1f7f0f20d160d21593e9193d8","title":"Configuration Validation","order":3}]},{"id":"seed_c293605b7667addc3a6d06d7c0659149","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Feature Flags","order":6,"contentType":"LEARNING","contentSlug":"feature-flags","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_26889055af8282169c37bd1ec0768796","title":"What Are Feature Flags","order":0},{"id":"seed_4c39b503f522b454a2b7e4ab6b4feaaf","title":"Feature Flag Design Patterns","order":1},{"id":"seed_4ed5c3dcf48a8426379634ed3fab03b5","title":"Flag Lifecycle Management","order":2},{"id":"seed_e4ab1e891878dba3eba981e8995f51a7","title":"Testing with Feature Flags","order":3}]},{"id":"seed_5d9b697b8efe24331d37db4008e5f71e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Understanding Lld Problem Statements","order":1,"contentType":"LEARNING","contentSlug":"understanding-lld-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_1c31966ae06349aa46b4689e15877879","title":"Reading Requirements Carefully","order":0},{"id":"seed_95c26446d6860e91d883237be69c613a","title":"Identifying Scope and Constraints","order":1},{"id":"seed_421fe424290827f6b63c444bb1b32ac4","title":"Clarifying Ambiguities","order":2},{"id":"seed_c417eb13c1d41aedb4a229bb7dd604e5","title":"Implicit vs Explicit Requirements","order":3}]},{"id":"seed_558782d3e1900dffcf12c15d3cb0fa4b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Gathering Requirements","order":2,"contentType":"LEARNING","contentSlug":"gathering-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_bad454b10d6bb0a7c435ff48d0931971","title":"Functional Requirements","order":0},{"id":"seed_9b4b8660b904c7ed2c69a85affd94fb5","title":"Non-Functional Requirements","order":1},{"id":"seed_8fb30ad2762644a7eb44e141e2b21bfe","title":"Asking Clarifying Questions","order":2},{"id":"seed_260b0885e44f0fd2eaa209559222e31b","title":"Documenting Requirements","order":3}]},{"id":"seed_5a219cc7ca52fa64076fa1f99b67d702","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Identifying Core Entities","order":3,"contentType":"LEARNING","contentSlug":"identifying-core-entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_a450d511267ec90f836e5f680734ed11","title":"Noun Extraction Technique","order":0},{"id":"seed_9d70d066b8bc3684d6bdde3ecd8cab1f","title":"Entity vs Attribute Distinction","order":1},{"id":"seed_a854b7e255d16d04595526eba22ee4e5","title":"Essential vs Optional Entities","order":2},{"id":"seed_2a318d07d5b025c2d70ab09bfe1e024d","title":"Entity List Validation","order":3}]},{"id":"seed_1e025dbbd91b0b0373f17ae00089dad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Defining Relationships","order":4,"contentType":"LEARNING","contentSlug":"defining-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_1355d84eff69ef67199bf34dd8cbd219","title":"Relationship Types Review","order":0},{"id":"seed_5bce7498dcc0e949a1f347ab57d04daa","title":"Cardinality and Multiplicity","order":1},{"id":"seed_c9c8420bf644f91848bcf3d99e20dfee","title":"Navigability","order":2},{"id":"seed_a1ef0bad0f86cfe15c753037d9028ae6","title":"Relationship Validation","order":3}]},{"id":"seed_4f4fe161105fd25a5d33b47a7454fbd2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Applying Design Patterns","order":5,"contentType":"LEARNING","contentSlug":"applying-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_d65e1ead7d1174a8c060227c065f4efd","title":"Pattern Matching to Problems","order":0},{"id":"seed_e4ed99122f68637101d5b75ac0037484","title":"Selecting Appropriate Patterns","order":1},{"id":"seed_987c9e81445ef1bedf94fd9730cfaf5f","title":"Pattern Combination","order":2},{"id":"seed_234b7badf7f4194a8375b9e1b444aad4","title":"Avoiding Over-Engineering","order":3}]},{"id":"seed_cc1d1a47d75fc356a9e5ddcb53b8f1a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Validating The Design","order":6,"contentType":"LEARNING","contentSlug":"validating-the-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_cf5df028b0e05a3c33fd924baeec4bd1","title":"Design Review Checklist","order":0},{"id":"seed_f1df45b4c9ece8987084358556c4cbf8","title":"SOLID Compliance Check","order":1},{"id":"seed_d716ab9ad06e5f30b7affe1e42495105","title":"Extensibility Validation","order":2},{"id":"seed_aa0ecc3cf29269d03252846117d29851","title":"Simplicity Check","order":3}]},{"id":"seed_2dcaf667097c2de0587d815d4de1c9a7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Iterating And Refining","order":7,"contentType":"LEARNING","contentSlug":"iterating-and-refining","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_340075caa96f4e1755c3bff11a3df90f","title":"Design is Iterative","order":0},{"id":"seed_657e3c390b85393c237a301c2051bcb5","title":"Feedback Incorporation","order":1},{"id":"seed_856c9af332219d815a91584be3f4135e","title":"Trade-off Decisions","order":2},{"id":"seed_fa2b5c556672f1b19fd450b7a8d5c00d","title":"Final Design Documentation","order":3}]},{"id":"seed_822e239d3c3560d84663d1090db0aba6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Parking Lot System","order":1,"contentType":"LEARNING","contentSlug":"parking-lot-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_1676f268ade8bb384519bb154f5d1535","title":"Requirements Analysis","order":0},{"id":"seed_61fba8f1a5b3ba812a3e29b40e39fec9","title":"Core Entities: Vehicle, ParkingSpot, Ticket, ParkingLot","order":1},{"id":"seed_f37f64993e893c427587d8c3633b1d95","title":"Class Relationships and Design","order":2},{"id":"seed_536d3c726d9052d87c79eeab94624406","title":"Patterns Applied: Factory and Strategy","order":3},{"id":"seed_29eb2e39106370eca2409a5d81cda349","title":"Edge Cases and Extensions","order":4},{"id":"seed_12b368ecd4751078c56b0ee19c5d4df0","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_84f756f5d53c5103e5562ab995bf1cf9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Library Management System","order":2,"contentType":"LEARNING","contentSlug":"library-management-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_7008aa41a1b94847daad408ddfd9cd9a","title":"Requirements Analysis","order":0},{"id":"seed_198b2010f5b5585b862f4719dc1d056b","title":"Core Entities: Book, Member, Loan, Librarian","order":1},{"id":"seed_575b7deae142409315cda7f3b5bb6ae6","title":"Class Relationships and Design","order":2},{"id":"seed_45af667eedafd406706345319affaef1","title":"Patterns Applied: Observer and State","order":3},{"id":"seed_ba9fafbc3e7e6d1839651e3414c21226","title":"Fine Calculation and Reservations","order":4},{"id":"seed_dd6903a4f58c767185f3e7408166cf4c","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_641e4a13c52b22fcc8b25278fbdb826e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Elevator System","order":3,"contentType":"LEARNING","contentSlug":"elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_a17d81328a462722a02f8e5ef508b037","title":"Requirements Analysis for Elevator System","order":0},{"id":"seed_91a78a5d9c9ec0a41643d5976cddcc79","title":"Core Entities: Elevator, Floor, Request, Controller","order":1},{"id":"seed_4900f2e62aebe06b21fc06af8288c854","title":"State Management Design","order":2},{"id":"seed_945e154c5eb90318c4f86cb89107711c","title":"Scheduling Algorithms: FCFS and SCAN","order":3},{"id":"seed_f1a903bc5d4bbea5feccfa6bf2d54b86","title":"Patterns Applied: State, Strategy, Observer","order":4},{"id":"seed_c07ec73e8b23f459791b5a2723a8d183","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_52d436178e0c7535ce8be37bba0f8972","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Chess Game","order":4,"contentType":"LEARNING","contentSlug":"chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_f0dec5c01085fda0ea83dc056dd36bdd","title":"Requirements Analysis for Chess Game","order":0},{"id":"seed_7632fff13c50815bdf8a12ca4148db69","title":"Core Entities: Board, Piece, Player, Move","order":1},{"id":"seed_62e78968c15ddc8a22a98e60b5145fdf","title":"Move Validation Design","order":2},{"id":"seed_f8c92dc2d189b8b9895b12cc4be73f97","title":"Game State Management","order":3},{"id":"seed_6a78aaad2073570cbbb295b8986e5aee","title":"Patterns Applied: Strategy, Command, Memento","order":4},{"id":"seed_ed6d8ea6a3f428d6490450aed5535541","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_850de741c37d894c0fce9b96bad6ed0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Ride Sharing Service","order":5,"contentType":"LEARNING","contentSlug":"ride-sharing-service","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_fe6cd89679af41f3325e6bb5600cb6cc","title":"Requirements Analysis","order":0},{"id":"seed_5fcfb45e8ebe441ef476195382e777d0","title":"Core Entities: Rider, Driver, Trip, Location","order":1},{"id":"seed_89e2de8dde2bda36e754948052c22b02","title":"Matching Algorithm Design","order":2},{"id":"seed_862b3759798fdf90d617c9e754ff4ed9","title":"Pricing and State Management","order":3},{"id":"seed_4cbec1b9fabb384b9441ae6eddaf43fd","title":"Patterns Applied: Strategy, Observer, State","order":4},{"id":"seed_a8daf560909f45caa2435304131af715","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_8ee6ebe6ec8f19bb0dfba0f25657576d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Hotel Booking System","order":6,"contentType":"LEARNING","contentSlug":"hotel-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.228Z","pages":[{"id":"seed_1b89f540be476b18b75f5051cb602fc9","title":"Requirements Analysis","order":0},{"id":"seed_73ffd17a452827987f1be32d4b656628","title":"Core Entities: Hotel, Room, Reservation, Guest","order":1},{"id":"seed_3be4e72b3ef8ec4370be7bfd7589ac9a","title":"Booking and Pricing Design","order":2},{"id":"seed_6718e57c13c81edd302fac2893cdda58","title":"Availability Management","order":3},{"id":"seed_478559d71e3f8f6965216cec4f4d9d90","title":"Patterns Applied: Factory, State, Template Method","order":4},{"id":"seed_6cd46d1faeb31ec651b6a7854f61fc59","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_4259da5e2ba0b0c3cdaa93d220770d09","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"What Interviewers Look For","order":1,"contentType":"LEARNING","contentSlug":"lld-what-interviewers-look-for","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_da263a5448ed121a4c5d3fc272dcd81a","title":"Design Thinking Ability","order":0},{"id":"seed_ba4096d4c5f143cad684462b492ada30","title":"Object-Oriented Understanding","order":1},{"id":"seed_f768b48815af69a5d8af8d82f907d9ad","title":"Pattern Knowledge Application","order":2},{"id":"seed_519b1bd6e6083d844c2004f25cc3c993","title":"Communication Skills","order":3}]},{"id":"seed_0e8caf0f2da03d1990014db94d064783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Time Management In Lld Interviews","order":2,"contentType":"LEARNING","contentSlug":"time-management-lld-interviews","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_3e21069a30231856c126c234815d2603","title":"Typical LLD Interview Structure","order":0},{"id":"seed_e9fcff2f8911084ddacd9d18611a0c64","title":"Time Allocation Strategy","order":1},{"id":"seed_aad8bb3cc28d36c03a8f7c0e4fbb2d3f","title":"When to Start Coding","order":2},{"id":"seed_2e7a3f8c0bb03c072a32d1bad7721e9b","title":"Handling Time Pressure","order":3}]},{"id":"seed_c16aca79dcb218e6fa6f6169da9265ba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Clarifying Requirements","order":3,"contentType":"LEARNING","contentSlug":"lld-clarifying-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_db7d4f1f1a0d5e57e543fd0f1170a312","title":"Essential Questions to Ask","order":0},{"id":"seed_e2019daaa44bb3acebee9a72788386b7","title":"Scoping the Problem","order":1},{"id":"seed_d6b43a05aedc60564d0d74acc12914e0","title":"Documenting Assumptions","order":2},{"id":"seed_cb63693d118b34c7739b4f4ed434f75b","title":"Confirming Understanding","order":3}]},{"id":"seed_969e788846442d00cb875e8721a1e893","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Communicating Your Design","order":4,"contentType":"LEARNING","contentSlug":"communicating-your-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_360eb4a18ea3e6797ba4b7ceb7ea84dd","title":"Thinking Aloud","order":0},{"id":"seed_13bf603d110c6f6501f3c41a5bad0e72","title":"Using Diagrams Effectively","order":1},{"id":"seed_01ec5e9567efcab929d7c70b680e1534","title":"Explaining Trade-offs","order":2},{"id":"seed_bdb841b06da225ab0869a0aea897fe7f","title":"Handling Questions and Feedback","order":3}]},{"id":"seed_c967003be2a3233b7b309d08a0de2a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Handling Constraints Trade Offs","order":5,"contentType":"LEARNING","contentSlug":"handling-constraints-trade-offs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_a10d1c3521eea084f4ed398798d2026d","title":"Discussing Design Alternatives","order":0},{"id":"seed_6da9545cca8153c9a1f372e152af8ff8","title":"Making and Justifying Decisions","order":1},{"id":"seed_24660b931078a52be9caee06dcc1489e","title":"Acknowledging Limitations","order":2},{"id":"seed_1b866bfb23c93f2ffe30034beaaed05d","title":"Adapting to New Requirements","order":3}]},{"id":"seed_ddbe0c6f5048d91649789374b53ce876","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Common Lld Interview Problems","order":6,"contentType":"LEARNING","contentSlug":"common-lld-interview-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_610c40b8e4d4c880a534623080782107","title":"Most Frequently Asked Problems","order":0},{"id":"seed_0d01ff3a995740011ad805790b8332d4","title":"Problem Categories and Patterns","order":1},{"id":"seed_202637f1b652509203b4166bba97b338","title":"Practice Problem List","order":2},{"id":"seed_798941b26ec51b8d7d651bf174d6918b","title":"Mock Interview Recommendations","order":3}]},{"id":"seed_00f30fd2acf005d93c84abdf67352391","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"From Design To Code","order":7,"contentType":"LEARNING","contentSlug":"from-design-to-code","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_3b212fc3946d34c00d181dce0e24015c","title":"Translating UML to Code","order":0},{"id":"seed_b1b9f70ff4a403476f0af2aa1007d20d","title":"Class Implementation Order","order":1},{"id":"seed_7e2e981a57a66be4a047ddf897409225","title":"Interface First, Implementation Second","order":2},{"id":"seed_bd5be1e5567c3f6c7c8db543eaff920d","title":"Incremental Implementation","order":3}]},{"id":"seed_4d94ab5db9fb0da5746416f8f10850c9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Code Organization Structure","order":8,"contentType":"LEARNING","contentSlug":"code-organization-structure","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_6b16378945109a45646f317e9269e765","title":"Project Structure for LLD Implementations","order":0},{"id":"seed_cfd3d2d8ebe2c68074197b150308add1","title":"Package Organization","order":1},{"id":"seed_8831947c754541174383070d203a425a","title":"Naming Conventions","order":2},{"id":"seed_8c0376527a2f5b42bf4fed6ad7ad31c5","title":"Code Layout Best Practices","order":3}]},{"id":"seed_e0db266c4e4e3a884790a41d83d3020b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Refactoring Toward Better Design","order":9,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_806bdd8a5ca09e754c85b6675e63108e","title":"When to Refactor","order":0},{"id":"seed_ede8ac230f9644d956975621ff30cb86","title":"Common Refactoring Patterns","order":1},{"id":"seed_ed4a8e115e46603a3a586e63c10a07cd","title":"Maintaining Behavior During Refactoring","order":2},{"id":"seed_64f0c6c55229472a7bb7e05a5dab767c","title":"Continuous Improvement","order":3}]},{"id":"seed_f268ce96bbb53953310e265b7e8ab7b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Continuous Learning","order":10,"contentType":"LEARNING","contentSlug":"continuous-learning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-15T17:54:19.229Z","pages":[{"id":"seed_79871a86a11d9da6f3551f3811452684","title":"Building LLD Fluency","order":0},{"id":"seed_f371f933581e1e3f9b9dae0ec0181f08","title":"Resources for Further Learning","order":1},{"id":"seed_b7d84416eb3a37790fe0857ab5ad6cf1","title":"Practice Strategies","order":2},{"id":"seed_25d8de738d7a0b11eaf5cfc8c40c3764","title":"Community Engagement","order":3}]}]},"currentModule":"$45:props:state:queries:1:state:data:json:path:modules:96","prevModule":"$45:props:state:queries:1:state:data:json:path:modules:95","nextModule":"$45:props:state:queries:1:state:data:json:path:modules:97","allModules":"$45:props:state:queries:1:state:data:json:path:modules"},"meta":{"values":{"path.createdAt":["Date"],"path.updatedAt":["Date"],"path.modules.0.createdAt":["Date"],"path.modules.0.updatedAt":["Date"],"path.modules.1.createdAt":["Date"],"path.modules.1.updatedAt":["Date"],"path.modules.2.createdAt":["Date"],"path.modules.2.updatedAt":["Date"],"path.modules.3.createdAt":["Date"],"path.modules.3.updatedAt":["Date"],"path.modules.4.createdAt":["Date"],"path.modules.4.updatedAt":["Date"],"path.modules.5.createdAt":["Date"],"path.modules.5.updatedAt":["Date"],"path.modules.6.createdAt":["Date"],"path.modules.6.updatedAt":["Date"],"path.modules.7.createdAt":["Date"],"path.modules.7.updatedAt":["Date"],"path.modules.8.createdAt":["Date"],"path.modules.8.updatedAt":["Date"],"path.modules.9.createdAt":["Date"],"path.modules.9.updatedAt":["Date"],"path.modules.10.createdAt":["Date"],"path.modules.10.updatedAt":["Date"],"path.modules.11.createdAt":["Date"],"path.modules.11.updatedAt":["Date"],"path.modules.12.createdAt":["Date"],"path.modules.12.updatedAt":["Date"],"path.modules.13.createdAt":["Date"],"path.modules.13.updatedAt":["Date"],"path.modules.14.createdAt":["Date"],"path.modules.14.updatedAt":["Date"],"path.modules.15.createdAt":["Date"],"path.modules.15.updatedAt":["Date"],"path.modules.16.createdAt":["Date"],"path.modules.16.updatedAt":["Date"],"path.modules.17.createdAt":["Date"],"path.modules.17.updatedAt":["Date"],"path.modules.18.createdAt":["Date"],"path.modules.18.updatedAt":["Date"],"path.modules.19.createdAt":["Date"],"path.modules.19.updatedAt":["Date"],"path.modules.20.createdAt":["Date"],"path.modules.20.updatedAt":["Date"],"path.modules.21.createdAt":["Date"],"path.modules.21.updatedAt":["Date"],"path.modules.22.createdAt":["Date"],"path.modules.22.updatedAt":["Date"],"path.modules.23.createdAt":["Date"],"path.modules.23.updatedAt":["Date"],"path.modules.24.createdAt":["Date"],"path.modules.24.updatedAt":["Date"],"path.modules.25.createdAt":["Date"],"path.modules.25.updatedAt":["Date"],"path.modules.26.createdAt":["Date"],"path.modules.26.updatedAt":["Date"],"path.modules.27.createdAt":["Date"],"path.modules.27.updatedAt":["Date"],"path.modules.28.createdAt":["Date"],"path.modules.28.updatedAt":["Date"],"path.modules.29.createdAt":["Date"],"path.modules.29.updatedAt":["Date"],"path.modules.30.createdAt":["Date"],"path.modules.30.updatedAt":["Date"],"path.modules.31.createdAt":["Date"],"path.modules.31.updatedAt":["Date"],"path.modules.32.createdAt":["Date"],"path.modules.32.updatedAt":["Date"],"path.modules.33.createdAt":["Date"],"path.modules.33.updatedAt":["Date"],"path.modules.34.createdAt":["Date"],"path.modules.34.updatedAt":["Date"],"path.modules.35.createdAt":["Date"],"path.modules.35.updatedAt":["Date"],"path.modules.36.createdAt":["Date"],"path.modules.36.updatedAt":["Date"],"path.modules.37.createdAt":["Date"],"path.modules.37.updatedAt":["Date"],"path.modules.38.createdAt":["Date"],"path.modules.38.updatedAt":["Date"],"path.modules.39.createdAt":["Date"],"path.modules.39.updatedAt":["Date"],"path.modules.40.createdAt":["Date"],"path.modules.40.updatedAt":["Date"],"path.modules.41.createdAt":["Date"],"path.modules.41.updatedAt":["Date"],"path.modules.42.createdAt":["Date"],"path.modules.42.updatedAt":["Date"],"path.modules.43.createdAt":["Date"],"path.modules.43.updatedAt":["Date"],"path.modules.44.createdAt":["Date"],"path.modules.44.updatedAt":["Date"],"path.modules.45.createdAt":["Date"],"path.modules.45.updatedAt":["Date"],"path.modules.46.createdAt":["Date"],"path.modules.46.updatedAt":["Date"],"path.modules.47.createdAt":["Date"],"path.modules.47.updatedAt":["Date"],"path.modules.48.createdAt":["Date"],"path.modules.48.updatedAt":["Date"],"path.modules.49.createdAt":["Date"],"path.modules.49.updatedAt":["Date"],"path.modules.50.createdAt":["Date"],"path.modules.50.updatedAt":["Date"],"path.modules.51.createdAt":["Date"],"path.modules.51.updatedAt":["Date"],"path.modules.52.createdAt":["Date"],"path.modules.52.updatedAt":["Date"],"path.modules.53.createdAt":["Date"],"path.modules.53.updatedAt":["Date"],"path.modules.54.createdAt":["Date"],"path.modules.54.updatedAt":["Date"],"path.modules.55.createdAt":["Date"],"path.modules.55.updatedAt":["Date"],"path.modules.56.createdAt":["Date"],"path.modules.56.updatedAt":["Date"],"path.modules.57.createdAt":["Date"],"path.modules.57.updatedAt":["Date"],"path.modules.58.createdAt":["Date"],"path.modules.58.updatedAt":["Date"],"path.modules.59.createdAt":["Date"],"path.modules.59.updatedAt":["Date"],"path.modules.60.createdAt":["Date"],"path.modules.60.updatedAt":["Date"],"path.modules.61.createdAt":["Date"],"path.modules.61.updatedAt":["Date"],"path.modules.62.createdAt":["Date"],"path.modules.62.updatedAt":["Date"],"path.modules.63.createdAt":["Date"],"path.modules.63.updatedAt":["Date"],"path.modules.64.createdAt":["Date"],"path.modules.64.updatedAt":["Date"],"path.modules.65.createdAt":["Date"],"path.modules.65.updatedAt":["Date"],"path.modules.66.createdAt":["Date"],"path.modules.66.updatedAt":["Date"],"path.modules.67.createdAt":["Date"],"path.modules.67.updatedAt":["Date"],"path.modules.68.createdAt":["Date"],"path.modules.68.updatedAt":["Date"],"path.modules.69.createdAt":["Date"],"path.modules.69.updatedAt":["Date"],"path.modules.70.createdAt":["Date"],"path.modules.70.updatedAt":["Date"],"path.modules.71.createdAt":["Date"],"path.modules.71.updatedAt":["Date"],"path.modules.72.createdAt":["Date"],"path.modules.72.updatedAt":["Date"],"path.modules.73.createdAt":["Date"],"path.modules.73.updatedAt":["Date"],"path.modules.74.createdAt":["Date"],"path.modules.74.updatedAt":["Date"],"path.modules.75.createdAt":["Date"],"path.modules.75.updatedAt":["Date"],"path.modules.76.createdAt":["Date"],"path.modules.76.updatedAt":["Date"],"path.modules.77.createdAt":["Date"],"path.modules.77.updatedAt":["Date"],"path.modules.78.createdAt":["Date"],"path.modules.78.updatedAt":["Date"],"path.modules.79.createdAt":["Date"],"path.modules.79.updatedAt":["Date"],"path.modules.80.createdAt":["Date"],"path.modules.80.updatedAt":["Date"],"path.modules.81.createdAt":["Date"],"path.modules.81.updatedAt":["Date"],"path.modules.82.createdAt":["Date"],"path.modules.82.updatedAt":["Date"],"path.modules.83.createdAt":["Date"],"path.modules.83.updatedAt":["Date"],"path.modules.84.createdAt":["Date"],"path.modules.84.updatedAt":["Date"],"path.modules.85.createdAt":["Date"],"path.modules.85.updatedAt":["Date"],"path.modules.86.createdAt":["Date"],"path.modules.86.updatedAt":["Date"],"path.modules.87.createdAt":["Date"],"path.modules.87.updatedAt":["Date"],"path.modules.88.createdAt":["Date"],"path.modules.88.updatedAt":["Date"],"path.modules.89.createdAt":["Date"],"path.modules.89.updatedAt":["Date"],"path.modules.90.createdAt":["Date"],"path.modules.90.updatedAt":["Date"],"path.modules.91.createdAt":["Date"],"path.modules.91.updatedAt":["Date"],"path.modules.92.createdAt":["Date"],"path.modules.92.updatedAt":["Date"],"path.modules.93.createdAt":["Date"],"path.modules.93.updatedAt":["Date"],"path.modules.94.createdAt":["Date"],"path.modules.94.updatedAt":["Date"],"path.modules.95.createdAt":["Date"],"path.modules.95.updatedAt":["Date"],"path.modules.96.createdAt":["Date"],"path.modules.96.updatedAt":["Date"],"path.modules.97.createdAt":["Date"],"path.modules.97.updatedAt":["Date"],"path.modules.98.createdAt":["Date"],"path.modules.98.updatedAt":["Date"],"path.modules.99.createdAt":["Date"],"path.modules.99.updatedAt":["Date"],"path.modules.100.createdAt":["Date"],"path.modules.100.updatedAt":["Date"],"path.modules.101.createdAt":["Date"],"path.modules.101.updatedAt":["Date"],"path.modules.102.createdAt":["Date"],"path.modules.102.updatedAt":["Date"],"path.modules.103.createdAt":["Date"],"path.modules.103.updatedAt":["Date"],"path.modules.104.createdAt":["Date"],"path.modules.104.updatedAt":["Date"],"path.modules.105.createdAt":["Date"],"path.modules.105.updatedAt":["Date"],"path.modules.106.createdAt":["Date"],"path.modules.106.updatedAt":["Date"],"path.modules.107.createdAt":["Date"],"path.modules.107.updatedAt":["Date"],"path.modules.108.createdAt":["Date"],"path.modules.108.updatedAt":["Date"],"path.modules.109.createdAt":["Date"],"path.modules.109.updatedAt":["Date"],"path.modules.110.createdAt":["Date"],"path.modules.110.updatedAt":["Date"],"path.modules.111.createdAt":["Date"],"path.modules.111.updatedAt":["Date"],"path.modules.112.createdAt":["Date"],"path.modules.112.updatedAt":["Date"],"path.modules.113.createdAt":["Date"],"path.modules.113.updatedAt":["Date"],"path.modules.114.createdAt":["Date"],"path.modules.114.updatedAt":["Date"],"path.modules.115.createdAt":["Date"],"path.modules.115.updatedAt":["Date"],"path.modules.116.createdAt":["Date"],"path.modules.116.updatedAt":["Date"],"path.modules.117.createdAt":["Date"],"path.modules.117.updatedAt":["Date"],"path.modules.118.createdAt":["Date"],"path.modules.118.updatedAt":["Date"],"path.modules.119.createdAt":["Date"],"path.modules.119.updatedAt":["Date"],"path.modules.120.createdAt":["Date"],"path.modules.120.updatedAt":["Date"],"path.modules.121.createdAt":["Date"],"path.modules.121.updatedAt":["Date"],"path.modules.122.createdAt":["Date"],"path.modules.122.updatedAt":["Date"],"path.modules.123.createdAt":["Date"],"path.modules.123.updatedAt":["Date"],"path.modules.124.createdAt":["Date"],"path.modules.124.updatedAt":["Date"],"path.modules.125.createdAt":["Date"],"path.modules.125.updatedAt":["Date"],"path.modules.126.createdAt":["Date"],"path.modules.126.updatedAt":["Date"],"path.modules.127.createdAt":["Date"],"path.modules.127.updatedAt":["Date"],"path.modules.128.createdAt":["Date"],"path.modules.128.updatedAt":["Date"],"path.modules.129.createdAt":["Date"],"path.modules.129.updatedAt":["Date"],"path.modules.130.createdAt":["Date"],"path.modules.130.updatedAt":["Date"],"path.modules.131.createdAt":["Date"],"path.modules.131.updatedAt":["Date"],"path.modules.132.createdAt":["Date"],"path.modules.132.updatedAt":["Date"],"path.modules.133.createdAt":["Date"],"path.modules.133.updatedAt":["Date"],"path.modules.134.createdAt":["Date"],"path.modules.134.updatedAt":["Date"],"path.modules.135.createdAt":["Date"],"path.modules.135.updatedAt":["Date"],"path.modules.136.createdAt":["Date"],"path.modules.136.updatedAt":["Date"],"path.modules.137.createdAt":["Date"],"path.modules.137.updatedAt":["Date"],"path.modules.138.createdAt":["Date"],"path.modules.138.updatedAt":["Date"],"path.modules.139.createdAt":["Date"],"path.modules.139.updatedAt":["Date"],"path.modules.140.createdAt":["Date"],"path.modules.140.updatedAt":["Date"],"path.modules.141.createdAt":["Date"],"path.modules.141.updatedAt":["Date"],"path.modules.142.createdAt":["Date"],"path.modules.142.updatedAt":["Date"],"path.modules.143.createdAt":["Date"],"path.modules.143.updatedAt":["Date"],"path.modules.144.createdAt":["Date"],"path.modules.144.updatedAt":["Date"],"path.modules.145.createdAt":["Date"],"path.modules.145.updatedAt":["Date"],"path.modules.146.createdAt":["Date"],"path.modules.146.updatedAt":["Date"],"path.modules.147.createdAt":["Date"],"path.modules.147.updatedAt":["Date"],"path.modules.148.createdAt":["Date"],"path.modules.148.updatedAt":["Date"],"path.modules.149.createdAt":["Date"],"path.modules.149.updatedAt":["Date"],"path.modules.150.createdAt":["Date"],"path.modules.150.updatedAt":["Date"],"path.modules.151.createdAt":["Date"],"path.modules.151.updatedAt":["Date"],"path.modules.152.createdAt":["Date"],"path.modules.152.updatedAt":["Date"],"path.modules.153.createdAt":["Date"],"path.modules.153.updatedAt":["Date"],"path.modules.154.createdAt":["Date"],"path.modules.154.updatedAt":["Date"],"path.modules.155.createdAt":["Date"],"path.modules.155.updatedAt":["Date"],"path.modules.156.createdAt":["Date"],"path.modules.156.updatedAt":["Date"],"path.modules.157.createdAt":["Date"],"path.modules.157.updatedAt":["Date"],"path.modules.158.createdAt":["Date"],"path.modules.158.updatedAt":["Date"],"path.modules.159.createdAt":["Date"],"path.modules.159.updatedAt":["Date"],"path.modules.160.createdAt":["Date"],"path.modules.160.updatedAt":["Date"],"path.modules.161.createdAt":["Date"],"path.modules.161.updatedAt":["Date"],"path.modules.162.createdAt":["Date"],"path.modules.162.updatedAt":["Date"],"path.modules.163.createdAt":["Date"],"path.modules.163.updatedAt":["Date"],"path.modules.164.createdAt":["Date"],"path.modules.164.updatedAt":["Date"],"path.modules.165.createdAt":["Date"],"path.modules.165.updatedAt":["Date"],"path.modules.166.createdAt":["Date"],"path.modules.166.updatedAt":["Date"],"path.modules.167.createdAt":["Date"],"path.modules.167.updatedAt":["Date"],"path.modules.168.createdAt":["Date"],"path.modules.168.updatedAt":["Date"],"path.modules.169.createdAt":["Date"],"path.modules.169.updatedAt":["Date"],"path.modules.170.createdAt":["Date"],"path.modules.170.updatedAt":["Date"],"path.modules.171.createdAt":["Date"],"path.modules.171.updatedAt":["Date"],"path.modules.172.createdAt":["Date"],"path.modules.172.updatedAt":["Date"],"path.modules.173.createdAt":["Date"],"path.modules.173.updatedAt":["Date"],"path.modules.174.createdAt":["Date"],"path.modules.174.updatedAt":["Date"],"path.modules.175.createdAt":["Date"],"path.modules.175.updatedAt":["Date"],"path.modules.176.createdAt":["Date"],"path.modules.176.updatedAt":["Date"],"path.modules.177.createdAt":["Date"],"path.modules.177.updatedAt":["Date"],"path.modules.178.createdAt":["Date"],"path.modules.178.updatedAt":["Date"],"path.modules.179.createdAt":["Date"],"path.modules.179.updatedAt":["Date"],"path.modules.180.createdAt":["Date"],"path.modules.180.updatedAt":["Date"],"path.modules.181.createdAt":["Date"],"path.modules.181.updatedAt":["Date"],"path.modules.182.createdAt":["Date"],"path.modules.182.updatedAt":["Date"],"path.modules.183.createdAt":["Date"],"path.modules.183.updatedAt":["Date"],"path.modules.184.createdAt":["Date"],"path.modules.184.updatedAt":["Date"],"path.modules.185.createdAt":["Date"],"path.modules.185.updatedAt":["Date"],"path.modules.186.createdAt":["Date"],"path.modules.186.updatedAt":["Date"],"path.modules.187.createdAt":["Date"],"path.modules.187.updatedAt":["Date"],"path.modules.188.createdAt":["Date"],"path.modules.188.updatedAt":["Date"],"path.modules.189.createdAt":["Date"],"path.modules.189.updatedAt":["Date"],"path.modules.190.createdAt":["Date"],"path.modules.190.updatedAt":["Date"],"path.modules.191.createdAt":["Date"],"path.modules.191.updatedAt":["Date"],"path.modules.192.createdAt":["Date"],"path.modules.192.updatedAt":["Date"],"path.modules.193.createdAt":["Date"],"path.modules.193.updatedAt":["Date"],"path.modules.194.createdAt":["Date"],"path.modules.194.updatedAt":["Date"],"path.modules.195.createdAt":["Date"],"path.modules.195.updatedAt":["Date"],"path.modules.196.createdAt":["Date"],"path.modules.196.updatedAt":["Date"],"path.modules.197.createdAt":["Date"],"path.modules.197.updatedAt":["Date"],"path.modules.198.createdAt":["Date"],"path.modules.198.updatedAt":["Date"],"path.modules.199.createdAt":["Date"],"path.modules.199.updatedAt":["Date"],"path.modules.200.createdAt":["Date"],"path.modules.200.updatedAt":["Date"],"path.modules.201.createdAt":["Date"],"path.modules.201.updatedAt":["Date"],"path.modules.202.createdAt":["Date"],"path.modules.202.updatedAt":["Date"],"path.modules.203.createdAt":["Date"],"path.modules.203.updatedAt":["Date"],"path.modules.204.createdAt":["Date"],"path.modules.204.updatedAt":["Date"],"path.modules.205.createdAt":["Date"],"path.modules.205.updatedAt":["Date"],"path.modules.206.createdAt":["Date"],"path.modules.206.updatedAt":["Date"],"path.modules.207.createdAt":["Date"],"path.modules.207.updatedAt":["Date"],"path.modules.208.createdAt":["Date"],"path.modules.208.updatedAt":["Date"],"path.modules.209.createdAt":["Date"],"path.modules.209.updatedAt":["Date"],"path.modules.210.createdAt":["Date"],"path.modules.210.updatedAt":["Date"],"path.modules.211.createdAt":["Date"],"path.modules.211.updatedAt":["Date"],"path.modules.212.createdAt":["Date"],"path.modules.212.updatedAt":["Date"],"path.modules.213.createdAt":["Date"],"path.modules.213.updatedAt":["Date"],"path.modules.214.createdAt":["Date"],"path.modules.214.updatedAt":["Date"],"path.modules.215.createdAt":["Date"],"path.modules.215.updatedAt":["Date"],"path.modules.216.createdAt":["Date"],"path.modules.216.updatedAt":["Date"],"path.modules.217.createdAt":["Date"],"path.modules.217.updatedAt":["Date"],"path.modules.218.createdAt":["Date"],"path.modules.218.updatedAt":["Date"],"path.modules.219.createdAt":["Date"],"path.modules.219.updatedAt":["Date"],"path.modules.220.createdAt":["Date"],"path.modules.220.updatedAt":["Date"],"path.modules.221.createdAt":["Date"],"path.modules.221.updatedAt":["Date"],"path.modules.222.createdAt":["Date"],"path.modules.222.updatedAt":["Date"],"path.modules.223.createdAt":["Date"],"path.modules.223.updatedAt":["Date"],"path.modules.224.createdAt":["Date"],"path.modules.224.updatedAt":["Date"],"path.modules.225.createdAt":["Date"],"path.modules.225.updatedAt":["Date"],"path.modules.226.createdAt":["Date"],"path.modules.226.updatedAt":["Date"],"path.modules.227.createdAt":["Date"],"path.modules.227.updatedAt":["Date"],"path.modules.228.createdAt":["Date"],"path.modules.228.updatedAt":["Date"],"path.modules.229.createdAt":["Date"],"path.modules.229.updatedAt":["Date"],"path.modules.230.createdAt":["Date"],"path.modules.230.updatedAt":["Date"],"path.modules.231.createdAt":["Date"],"path.modules.231.updatedAt":["Date"],"path.modules.232.createdAt":["Date"],"path.modules.232.updatedAt":["Date"],"path.modules.233.createdAt":["Date"],"path.modules.233.updatedAt":["Date"],"path.modules.234.createdAt":["Date"],"path.modules.234.updatedAt":["Date"],"path.modules.235.createdAt":["Date"],"path.modules.235.updatedAt":["Date"],"path.modules.236.createdAt":["Date"],"path.modules.236.updatedAt":["Date"],"path.modules.237.createdAt":["Date"],"path.modules.237.updatedAt":["Date"],"path.modules.238.createdAt":["Date"],"path.modules.238.updatedAt":["Date"],"path.modules.239.createdAt":["Date"],"path.modules.239.updatedAt":["Date"],"path.modules.240.createdAt":["Date"],"path.modules.240.updatedAt":["Date"],"path.modules.241.createdAt":["Date"],"path.modules.241.updatedAt":["Date"],"path.modules.242.createdAt":["Date"],"path.modules.242.updatedAt":["Date"],"path.modules.243.createdAt":["Date"],"path.modules.243.updatedAt":["Date"],"path.modules.244.createdAt":["Date"],"path.modules.244.updatedAt":["Date"],"path.modules.245.createdAt":["Date"],"path.modules.245.updatedAt":["Date"],"currentModule.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.96.createdAt","currentModule.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.96.updatedAt","prevModule.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.95.createdAt","prevModule.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.95.updatedAt","nextModule.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.97.createdAt","nextModule.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.97.updatedAt","allModules.0.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.0.createdAt","allModules.0.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.0.updatedAt","allModules.1.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.1.createdAt","allModules.1.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.1.updatedAt","allModules.2.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.2.createdAt","allModules.2.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.2.updatedAt","allModules.3.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.3.createdAt","allModules.3.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.3.updatedAt","allModules.4.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.4.createdAt","allModules.4.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.4.updatedAt","allModules.5.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.5.createdAt","allModules.5.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.5.updatedAt","allModules.6.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.6.createdAt","allModules.6.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.6.updatedAt","allModules.7.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.7.createdAt","allModules.7.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.7.updatedAt","allModules.8.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.8.createdAt","allModules.8.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.8.updatedAt","allModules.9.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.9.createdAt","allModules.9.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.9.updatedAt","allModules.10.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.10.createdAt","allModules.10.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.10.updatedAt","allModules.11.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.11.createdAt","allModules.11.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.11.updatedAt","allModules.12.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.12.createdAt","allModules.12.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.12.updatedAt","allModules.13.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.13.createdAt","allModules.13.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.13.updatedAt","allModules.14.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.14.createdAt","allModules.14.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.14.updatedAt","allModules.15.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.15.createdAt","allModules.15.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.15.updatedAt","allModules.16.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.16.createdAt","allModules.16.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.16.updatedAt","allModules.17.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.17.createdAt","allModules.17.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.17.updatedAt","allModules.18.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.18.createdAt","allModules.18.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.18.updatedAt","allModules.19.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.19.createdAt","allModules.19.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.19.updatedAt","allModules.20.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.20.createdAt","allModules.20.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.20.updatedAt","allModules.21.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.21.createdAt","allModules.21.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.21.updatedAt","allModules.22.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.22.createdAt","allModules.22.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.22.updatedAt","allModules.23.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.23.createdAt","allModules.23.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.23.updatedAt","allModules.24.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.24.createdAt","allModules.24.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.24.updatedAt","allModules.25.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.25.createdAt","allModules.25.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.25.updatedAt","allModules.26.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.26.createdAt","allModules.26.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.26.updatedAt","allModules.27.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.27.createdAt","allModules.27.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.27.updatedAt","allModules.28.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.28.createdAt","allModules.28.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.28.updatedAt","allModules.29.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.29.createdAt","allModules.29.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.29.updatedAt","allModules.30.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.30.createdAt","allModules.30.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.30.updatedAt","allModules.31.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.31.createdAt","allModules.31.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.31.updatedAt","allModules.32.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.32.createdAt","allModules.32.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.32.updatedAt","allModules.33.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.33.createdAt","allModules.33.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.33.updatedAt","allModules.34.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.34.createdAt","allModules.34.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.34.updatedAt","allModules.35.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.35.createdAt","allModules.35.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.35.updatedAt","allModules.36.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.36.createdAt","allModules.36.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.36.updatedAt","allModules.37.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.37.createdAt","allModules.37.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.37.updatedAt","allModules.38.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.38.createdAt","allModules.38.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.38.updatedAt","allModules.39.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.39.createdAt","allModules.39.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.39.updatedAt","allModules.40.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.40.createdAt","allModules.40.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.40.updatedAt","allModules.41.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.41.createdAt","allModules.41.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.41.updatedAt","allModules.42.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.42.createdAt","allModules.42.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.42.updatedAt","allModules.43.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.43.createdAt","allModules.43.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.43.updatedAt","allModules.44.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.44.createdAt","allModules.44.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.44.updatedAt","allModules.45.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.45.createdAt","allModules.45.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.45.updatedAt","allModules.46.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.46.createdAt","allModules.46.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.46.updatedAt","allModules.47.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.47.createdAt","allModules.47.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.47.updatedAt","allModules.48.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.48.createdAt","allModules.48.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.48.updatedAt","allModules.49.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.49.createdAt","allModules.49.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.49.updatedAt","allModules.50.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.50.createdAt","allModules.50.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.50.updatedAt","allModules.51.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.51.createdAt","allModules.51.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.51.updatedAt","allModules.52.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.52.createdAt","allModules.52.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.52.updatedAt","allModules.53.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.53.createdAt","allModules.53.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.53.updatedAt","allModules.54.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.54.createdAt","allModules.54.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.54.updatedAt","allModules.55.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.55.createdAt","allModules.55.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.55.updatedAt","allModules.56.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.56.createdAt","allModules.56.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.56.updatedAt","allModules.57.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.57.createdAt","allModules.57.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.57.updatedAt","allModules.58.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.58.createdAt","allModules.58.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.58.updatedAt","allModules.59.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.59.createdAt","allModules.59.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.59.updatedAt","allModules.60.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.60.createdAt","allModules.60.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.60.updatedAt","allModules.61.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.61.createdAt","allModules.61.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.61.updatedAt","allModules.62.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.62.createdAt","allModules.62.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.62.updatedAt","allModules.63.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.63.createdAt","allModules.63.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.63.updatedAt","allModules.64.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.64.createdAt","allModules.64.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.64.updatedAt","allModules.65.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.65.createdAt","allModules.65.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.65.updatedAt","allModules.66.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.66.createdAt","allModules.66.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.66.updatedAt","allModules.67.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.67.createdAt","allModules.67.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.67.updatedAt","allModules.68.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.68.createdAt","allModules.68.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.68.updatedAt","allModules.69.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.69.createdAt","allModules.69.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.69.updatedAt","allModules.70.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.70.createdAt","allModules.70.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.70.updatedAt","allModules.71.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.71.createdAt","allModules.71.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.71.updatedAt","allModules.72.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.72.createdAt","allModules.72.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.72.updatedAt","allModules.73.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.73.createdAt","allModules.73.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.73.updatedAt","allModules.74.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.74.createdAt","allModules.74.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.74.updatedAt","allModules.75.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.75.createdAt","allModules.75.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.75.updatedAt","allModules.76.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.76.createdAt","allModules.76.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.76.updatedAt","allModules.77.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.77.createdAt","allModules.77.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.77.updatedAt","allModules.78.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.78.createdAt","allModules.78.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.78.updatedAt","allModules.79.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.79.createdAt","allModules.79.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.79.updatedAt","allModules.80.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.80.createdAt","allModules.80.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.80.updatedAt","allModules.81.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.81.createdAt","allModules.81.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.81.updatedAt","allModules.82.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.82.createdAt","allModules.82.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.82.updatedAt","allModules.83.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.83.createdAt","allModules.83.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.83.updatedAt","allModules.84.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.84.createdAt","allModules.84.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.84.updatedAt","allModules.85.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.85.createdAt","allModules.85.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.85.updatedAt","allModules.86.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.86.createdAt","allModules.86.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.86.updatedAt","allModules.87.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.87.createdAt","allModules.87.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.87.updatedAt","allModules.88.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.88.createdAt","allModules.88.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.88.updatedAt","allModules.89.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.89.createdAt","allModules.89.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.89.updatedAt","allModules.90.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.90.createdAt","allModules.90.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.90.updatedAt","allModules.91.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.91.createdAt","allModules.91.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.91.updatedAt","allModules.92.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.92.createdAt","allModules.92.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.92.updatedAt","allModules.93.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.93.createdAt","allModules.93.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.93.updatedAt","allModules.94.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.94.createdAt","allModules.94.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.94.updatedAt","allModules.95.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.95.createdAt","allModules.95.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.95.updatedAt","allModules.96.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.96.createdAt","allModules.96.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.96.updatedAt","allModules.97.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.97.createdAt","allModules.97.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.97.updatedAt","allModules.98.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.98.createdAt","allModules.98.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.98.updatedAt","allModules.99.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.99.createdAt","allModules.99.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.99.updatedAt","allModules.100.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.100.createdAt","allModules.100.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.100.updatedAt","allModules.101.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.101.createdAt","allModules.101.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.101.updatedAt","allModules.102.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.102.createdAt","allModules.102.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.102.updatedAt","allModules.103.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.103.createdAt","allModules.103.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.103.updatedAt","allModules.104.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.104.createdAt","allModules.104.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.104.updatedAt","allModules.105.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.105.createdAt","allModules.105.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.105.updatedAt","allModules.106.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.106.createdAt","allModules.106.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.106.updatedAt","allModules.107.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.107.createdAt","allModules.107.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.107.updatedAt","allModules.108.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.108.createdAt","allModules.108.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.108.updatedAt","allModules.109.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.109.createdAt","allModules.109.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.109.updatedAt","allModules.110.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.110.createdAt","allModules.110.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.110.updatedAt","allModules.111.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.111.createdAt","allModules.111.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.111.updatedAt","allModules.112.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.112.createdAt","allModules.112.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.112.updatedAt","allModules.113.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.113.createdAt","allModules.113.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.113.updatedAt","allModules.114.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.114.createdAt","allModules.114.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.114.updatedAt","allModules.115.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.115.createdAt","allModules.115.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.115.updatedAt","allModules.116.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.116.createdAt","allModules.116.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.116.updatedAt","allModules.117.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.117.createdAt","allModules.117.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.117.updatedAt","allModules.118.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.118.createdAt","allModules.118.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.118.updatedAt","allModules.119.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.119.createdAt","allModules.119.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.119.updatedAt","allModules.120.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.120.createdAt","allModules.120.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.120.updatedAt","allModules.121.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.121.createdAt","allModules.121.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.121.updatedAt","allModules.122.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.122.createdAt","allModules.122.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.122.updatedAt","allModules.123.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.123.createdAt","allModules.123.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.123.updatedAt","allModules.124.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.124.createdAt","allModules.124.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.124.updatedAt","allModules.125.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.125.createdAt","allModules.125.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.125.updatedAt","allModules.126.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.126.createdAt","allModules.126.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.126.updatedAt","allModules.127.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.127.createdAt","allModules.127.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.127.updatedAt","allModules.128.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.128.createdAt","allModules.128.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.128.updatedAt","allModules.129.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.129.createdAt","allModules.129.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.129.updatedAt","allModules.130.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.130.createdAt","allModules.130.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.130.updatedAt","allModules.131.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.131.createdAt","allModules.131.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.131.updatedAt","allModules.132.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.132.createdAt","allModules.132.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.132.updatedAt","allModules.133.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.133.createdAt","allModules.133.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.133.updatedAt","allModules.134.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.134.createdAt","allModules.134.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.134.updatedAt","allModules.135.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.135.createdAt","allModules.135.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.135.updatedAt","allModules.136.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.136.createdAt","allModules.136.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.136.updatedAt","allModules.137.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.137.createdAt","allModules.137.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.137.updatedAt","allModules.138.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.138.createdAt","allModules.138.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.138.updatedAt","allModules.139.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.139.createdAt","allModules.139.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.139.updatedAt","allModules.140.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.140.createdAt","allModules.140.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.140.updatedAt","allModules.141.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.141.createdAt","allModules.141.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.141.updatedAt","allModules.142.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.142.createdAt","allModules.142.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.142.updatedAt","allModules.143.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.143.createdAt","allModules.143.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.143.updatedAt","allModules.144.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.144.createdAt","allModules.144.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.144.updatedAt","allModules.145.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.145.createdAt","allModules.145.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.145.updatedAt","allModules.146.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.146.createdAt","allModules.146.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.146.updatedAt","allModules.147.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.147.createdAt","allModules.147.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.147.updatedAt","allModules.148.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.148.createdAt","allModules.148.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.148.updatedAt","allModules.149.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.149.createdAt","allModules.149.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.149.updatedAt","allModules.150.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.150.createdAt","allModules.150.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.150.updatedAt","allModules.151.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.151.createdAt","allModules.151.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.151.updatedAt","allModules.152.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.152.createdAt","allModules.152.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.152.updatedAt","allModules.153.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.153.createdAt","allModules.153.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.153.updatedAt","allModules.154.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.154.createdAt","allModules.154.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.154.updatedAt","allModules.155.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.155.createdAt","allModules.155.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.155.updatedAt","allModules.156.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.156.createdAt","allModules.156.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.156.updatedAt","allModules.157.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.157.createdAt","allModules.157.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.157.updatedAt","allModules.158.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.158.createdAt","allModules.158.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.158.updatedAt","allModules.159.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.159.createdAt","allModules.159.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.159.updatedAt","allModules.160.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.160.createdAt","allModules.160.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.160.updatedAt","allModules.161.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.161.createdAt","allModules.161.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.161.updatedAt","allModules.162.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.162.createdAt","allModules.162.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.162.updatedAt","allModules.163.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.163.createdAt","allModules.163.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.163.updatedAt","allModules.164.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.164.createdAt","allModules.164.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.164.updatedAt","allModules.165.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.165.createdAt","allModules.165.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.165.updatedAt","allModules.166.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.166.createdAt","allModules.166.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.166.updatedAt","allModules.167.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.167.createdAt","allModules.167.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.167.updatedAt","allModules.168.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.168.createdAt","allModules.168.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.168.updatedAt","allModules.169.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.169.createdAt","allModules.169.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.169.updatedAt","allModules.170.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.170.createdAt","allModules.170.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.170.updatedAt","allModules.171.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.171.createdAt","allModules.171.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.171.updatedAt","allModules.172.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.172.createdAt","allModules.172.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.172.updatedAt","allModules.173.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.173.createdAt","allModules.173.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.173.updatedAt","allModules.174.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.174.createdAt","allModules.174.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.174.updatedAt","allModules.175.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.175.createdAt","allModules.175.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.175.updatedAt","allModules.176.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.176.createdAt","allModules.176.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.176.updatedAt","allModules.177.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.177.createdAt","allModules.177.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.177.updatedAt","allModules.178.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.178.createdAt","allModules.178.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.178.updatedAt","allModules.179.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.179.createdAt","allModules.179.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.179.updatedAt","allModules.180.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.180.createdAt","allModules.180.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.180.updatedAt","allModules.181.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.181.createdAt","allModules.181.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.181.updatedAt","allModules.182.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.182.createdAt","allModules.182.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.182.updatedAt","allModules.183.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.183.createdAt","allModules.183.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.183.updatedAt","allModules.184.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.184.createdAt","allModules.184.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.184.updatedAt","allModules.185.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.185.createdAt","allModules.185.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.185.updatedAt","allModules.186.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.186.createdAt","allModules.186.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.186.updatedAt","allModules.187.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.187.createdAt","allModules.187.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.187.updatedAt","allModules.188.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.188.createdAt","allModules.188.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.188.updatedAt","allModules.189.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.189.createdAt","allModules.189.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.189.updatedAt","allModules.190.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.190.createdAt","allModules.190.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.190.updatedAt","allModules.191.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.191.createdAt","allModules.191.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.191.updatedAt","allModules.192.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.192.createdAt","allModules.192.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.192.updatedAt","allModules.193.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.193.createdAt","allModules.193.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.193.updatedAt","allModules.194.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.194.createdAt","allModules.194.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.194.updatedAt","allModules.195.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.195.createdAt","allModules.195.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.195.updatedAt","allModules.196.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.196.createdAt","allModules.196.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.196.updatedAt","allModules.197.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.197.createdAt","allModules.197.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.197.updatedAt","allModules.198.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.198.createdAt","allModules.198.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.198.updatedAt","allModules.199.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.199.createdAt","allModules.199.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.199.updatedAt","allModules.200.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.200.createdAt","allModules.200.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.200.updatedAt","allModules.201.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.201.createdAt","allModules.201.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.201.updatedAt","allModules.202.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.202.createdAt","allModules.202.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.202.updatedAt","allModules.203.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.203.createdAt","allModules.203.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.203.updatedAt","allModules.204.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.204.createdAt","allModules.204.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.204.updatedAt","allModules.205.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.205.createdAt","allModules.205.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.205.updatedAt","allModules.206.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.206.createdAt","allModules.206.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.206.updatedAt","allModules.207.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.207.createdAt","allModules.207.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.207.updatedAt","allModules.208.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.208.createdAt","allModules.208.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.208.updatedAt","allModules.209.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.209.createdAt","allModules.209.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.209.updatedAt","allModules.210.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.210.createdAt","allModules.210.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.210.updatedAt","allModules.211.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.211.createdAt","allModules.211.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.211.updatedAt","allModules.212.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.212.createdAt","allModules.212.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.212.updatedAt","allModules.213.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.213.createdAt","allModules.213.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.213.updatedAt","allModules.214.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.214.createdAt","allModules.214.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.214.updatedAt","allModules.215.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.215.createdAt","allModules.215.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.215.updatedAt","allModules.216.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.216.createdAt","allModules.216.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.216.updatedAt","allModules.217.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.217.createdAt","allModules.217.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.217.updatedAt","allModules.218.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.218.createdAt","allModules.218.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.218.updatedAt","allModules.219.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.219.createdAt","allModules.219.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.219.updatedAt","allModules.220.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.220.createdAt","allModules.220.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.220.updatedAt","allModules.221.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.221.createdAt","allModules.221.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.221.updatedAt","allModules.222.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.222.createdAt","allModules.222.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.222.updatedAt","allModules.223.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.223.createdAt","allModules.223.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.223.updatedAt","allModules.224.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.224.createdAt","allModules.224.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.224.updatedAt","allModules.225.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.225.createdAt","allModules.225.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.225.updatedAt","allModules.226.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.226.createdAt","allModules.226.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.226.updatedAt","allModules.227.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.227.createdAt","allModules.227.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.227.updatedAt","allModules.228.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.228.createdAt","allModules.228.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.228.updatedAt","allModules.229.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.229.createdAt","allModules.229.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.229.updatedAt","allModules.230.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.230.createdAt","allModules.230.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.230.updatedAt","allModules.231.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.231.createdAt","allModules.231.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.231.updatedAt","allModules.232.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.232.createdAt","allModules.232.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.232.updatedAt","allModules.233.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.233.createdAt","allModules.233.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.233.updatedAt","allModules.234.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.234.createdAt","allModules.234.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.234.updatedAt","allModules.235.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.235.createdAt","allModules.235.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.235.updatedAt","allModules.236.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.236.createdAt","allModules.236.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.236.updatedAt","allModules.237.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.237.createdAt","allModules.237.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.237.updatedAt","allModules.238.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.238.createdAt","allModules.238.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.238.updatedAt","allModules.239.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.239.createdAt","allModules.239.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.239.updatedAt","allModules.240.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.240.createdAt","allModules.240.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.240.updatedAt","allModules.241.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.241.createdAt","allModules.241.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.241.updatedAt","allModules.242.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.242.createdAt","allModules.242.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.242.updatedAt","allModules.243.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.243.createdAt","allModules.243.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.243.updatedAt","allModules.244.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.244.createdAt","allModules.244.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.244.updatedAt","allModules.245.createdAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.245.createdAt","allModules.245.updatedAt":"$45:props:state:queries:1:state:data:meta:values:path.modules.245.updatedAt"},"referentialEqualities":{"allModules":["path.modules"],"prevModule":["path.modules.95"],"currentModule":["path.modules.96"],"nextModule":["path.modules.97"]},"v":1}},"dataUpdateCount":1,"dataUpdatedAt":1792196631505,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningPaths","getModule"],{"input":{"pathSlug":"lld-system-design","contentType":"LEARNING","contentSlug":"separation-of-concerns"},"type":"query"}],"queryHash":"[[\"learningPaths\",\"getModule\"],{\"input\":{\"contentSlug\":\"separation-of-concerns\",\"contentType\":\"LEARNING\",\"pathSlug\":\"lld-system-design\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631668,"state":{"data":{"json":{"id":"seed_0e997b34ce7139995e9c353b35bd22ea","slug":"separation-of-concerns","category":"System Design (HLD)","topic":"Separation of Concerns","title":"Separation of Concerns","description":"Master the art of decomposing software systems into focused, manageable units. Learn to identify, isolate, and manage distinct concerns—from business logic to cross-cutting aspects—creating systems that are maintainable, testable, and resilient to change.","difficulty":"INTERMEDIATE","estimatedMinutes":75,"pages":[{"id":"seed_21d296f978f79f79b5695851819f12dd","title":"Identifying Concerns","order":0,"content":[{"id":"opening-hook","title":"The Essence of Software Decomposition","content":[{"data":{"content":"Every software system, regardless of its size or complexity, is a tapestry woven from distinct threads of functionality. A web application simultaneously handles **user authentication**, **data validation**, **business logic**, **persistence**, **logging**, **error handling**, and **presentation**. Each of these represents a different *concern*—a distinct area of responsibility within the system.\n\nThe ability to recognize and articulate these concerns is the first step toward building software that remains comprehensible and malleable throughout its lifecycle. Without this recognition, systems become tangled masses where every change requires understanding everything at once, and modifying one feature inadvertently breaks another."},"type":"text"},{"data":{"icon":"Target","title":"What You Will Learn","content":"By the end of this page, you will understand what constitutes a 'concern' in software design, develop techniques for identifying concerns in any system, and learn to distinguish between different types of concerns. This foundational skill enables every subsequent principle of separation—you cannot separate what you cannot see.","variant":"info"},"type":"callout"}]},{"id":"what-is-a-concern","title":"What Is a Concern?","content":[{"data":{"content":"$71"},"type":"text"},{"data":{"items":["**Coherence** — A concern represents a unified, logically related set of behaviors or data. Everything within the concern 'belongs together' in a meaningful way.","**Identifiability** — A concern can be named and discussed. If you can't articulate what a concern is about, it may not be a genuine concern but rather an undefined mixture.","**Distinct Purpose** — A concern serves a specific purpose that differs from other concerns. While concerns may interact, each addresses a different fundamental question or responsibility.","**Potential for Isolation** — At least in principle, a concern could be developed, tested, or modified without deep entanglement with other concerns (though full isolation isn't always practical).","**Stable Boundary** — Over time, the boundary of a well-identified concern remains relatively stable, even as implementation details evolve."],"title":{"icon":"Target","text":"Essential Characteristics of a Concern","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"},{"data":{"icon":"Info","title":"Concerns Are Not Always Obvious","content":"Identifying concerns is an analytical skill that develops with experience. A junior developer might see a monolithic 'handle user request' function. A senior developer sees authentication, authorization, validation, business logic, persistence, and response formatting—each a distinct concern waiting to be recognized.","variant":"note"},"type":"callout"}],"titleType":"number","titleNumber":1},{"id":"categories-of-concerns","title":"Categories of Concerns","content":[{"data":{"content":"Concerns manifest at different levels and serve different purposes within software systems. Understanding these categories helps you systematically analyze any system and ensure you haven't overlooked important aspects.\n\n**Functional vs Non-Functional Concerns:**\n\nThe most fundamental distinction is between concerns that define *what* the system does versus *how well* it does it:"},"type":"text"},{"data":{"rows":[["Functional Concerns","What the system does—its features and capabilities","User registration, payment processing, order fulfillment, report generation","What actions can users perform? What data transformations occur?"],["Non-Functional Concerns","How well the system performs its functions—quality attributes","Performance, security, reliability, scalability, usability, maintainability","How fast? How secure? How available? How easy to modify?"]],"caption":"Functional vs Non-Functional Concerns","headers":["Category","Definition","Examples","Typical Questions"]},"type":"table"},{"data":{"content":"**Domain Concerns vs Technical Concerns:**\n\nAnother critical distinction separates concerns related to the problem domain from concerns related to the technical solution:"},"type":"text"},{"data":{"left":[{"data":{"items":["**Business rules** — How the domain works (e.g., 'orders over $100 get free shipping')","**Domain entities** — Core concepts like Customer, Order, Product, Account","**Domain services** — Operations meaningful in the business context (e.g., 'process refund')","**Workflows** — Business processes that span multiple operations","**Policies** — Business decisions encoded as logic (pricing, eligibility, etc.)"],"title":{"icon":"Briefcase","text":"Domain Concerns","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"}],"right":[{"data":{"items":["**Persistence** — How data is stored and retrieved (databases, files)","**Communication** — How components exchange data (HTTP, messaging)","**Infrastructure** — Deployment, scaling, monitoring capabilities","**Presentation** — How information is displayed to users (UI/UX)","**Integration** — How external systems are connected and managed"],"title":{"icon":"Cpu","text":"Technical Concerns","type":"icon","color":"secondary","variant":"outline-circle"},"variant":"accent"},"type":"list"}]},"type":"two-column"},{"data":{"icon":"Lightbulb","title":"The Volatility Principle","content":"Domain concerns and technical concerns typically change for different reasons and at different rates. Business rules evolve with market conditions; infrastructure concerns change with technology choices. Separating them means that replacing your database doesn't require rewriting your business logic, and changing a business rule doesn't require understanding your caching strategy.","variant":"tip"},"type":"callout"}],"titleType":"number","titleNumber":2},{"id":"core-application-concerns","title":"Core Application Concerns","content":[{"data":{"content":"While every application has unique functional requirements, certain concerns appear so consistently across software systems that they form a common vocabulary for engineers. Recognizing these patterns accelerates your ability to analyze new systems and communicate with other developers.\n\n**The Universal Concerns:**\n\nConsider a typical web application processing a user request. Even in a simple CRUD operation, numerous concerns are involved:"},"type":"text"},{"data":{"code":"$72","fileName":"concerns-in-action.ts","language":"typescript"},"type":"code"},{"data":{"content":"The code above is instructive but **problematic** from a separation of concerns perspective. All these concerns are intertwined in a single function, making it difficult to:\n\n- **Test** any single concern in isolation\n- **Modify** one concern without risking others\n- **Reuse** individual concerns in other contexts\n- **Understand** what the function does at a glance\n\nRecognizing these concerns is the first step. Later in this module, we'll learn techniques to isolate them."},"type":"text"},{"data":{"items":["**Input Handling** — Parsing, deserializing, and validating incoming data before it enters the system","**Authentication** — Verifying identity claims (who is making the request)","**Authorization** — Enforcing access control (what are they allowed to do)","**Business Logic** — Core domain rules and calculations that define the system's purpose","**Data Access** — Reading from and writing to persistent storage","**Caching** — Storing computed results to avoid redundant work","**Transaction Management** — Ensuring atomicity and consistency of state changes","**Error Handling** — Detecting, categorizing, and responding to failures","**Logging** — Recording events for debugging, auditing, and analytics","**Metrics / Monitoring** — Measuring system behavior for operational visibility","**Event Publishing** — Notifying other components or systems of state changes","**Output Formatting** — Transforming internal data into appropriate output formats"],"title":{"icon":"Layers","text":"Catalog of Common Concerns","type":"icon","color":"primary","variant":"outline-circle"},"variant":"glass"},"type":"list"}],"titleType":"number","titleNumber":3},{"id":"techniques-for-identifying","title":"Techniques for Identifying Concerns","content":[{"data":{"content":"Identifying concerns is part analysis, part intuition—and it improves dramatically with practice. The following techniques provide systematic approaches to uncovering concerns in any system.\n\n**Technique 1: The 'Why' Chain**\n\nFor any piece of code or functionality, ask 'Why does this exist?' repeatedly until you reach a fundamental purpose. Each distinct answer often reveals a separate concern.\n\n*Example:* Why does this line validate the email format?\n→ To ensure data quality (Input Validation concern)\n→ Why ensure data quality? To prevent errors later (Error Prevention concern)\n→ Why prevent errors? To maintain system integrity (Data Integrity concern)\n\nEach level reveals a different aspect that might warrant separate consideration."},"type":"text"},{"data":{"code":"// Original mixed concern code\nfunction processPayment(payment: Payment) {\n // Why? To ensure the amount is valid (VALIDATION)\n if (payment.amount <= 0) throw new Error(\"Invalid amount\");\n \n // Why? To track what happened (LOGGING)\n console.log(`Processing payment: ${payment.id}`);\n \n // Why? To check user permission (AUTHORIZATION)\n if (!payment.user.canMakePayments) throw new Error(\"Not authorized\");\n \n // Why? To persist the payment record (PERSISTENCE)\n database.save(payment);\n \n // Why? To communicate with payment provider (INTEGRATION)\n stripeClient.charge(payment.amount, payment.user.card);\n \n // Why? To inform other systems (EVENTING)\n eventBus.emit('payment.processed', payment);\n}\n\n// Each \"Why?\" answer points to a distinct concern that could be separated","fileName":"why-chain-analysis.ts","language":"typescript"},"type":"code"},{"data":{"content":"**Technique 2: The Stakeholder Lens**\n\nDifferent stakeholders care about different aspects of a system. Viewing the system through each stakeholder's perspective reveals concerns that might otherwise be invisible:\n\n- **End Users** see features, usability, performance\n- **Business Owners** see revenue, compliance, competitive advantage\n- **Operations Teams** see deployability, monitoring, incident response\n- **Developers** see maintainability, testability, architectural clarity\n- **Security Teams** see vulnerabilities, access control, audit trails\n- **Data Teams** see data quality, analytics, privacy compliance\n\nEach stakeholder perspective illuminates different concerns."},"type":"text"},{"data":{"icon":"Lightbulb","title":"The Change Driver Test","content":"Ask: 'What different forces might cause this code to change?' Each distinct force typically represents a distinct concern. If marketing requirements, database schema changes, and regulatory updates could all modify the same code, you have multiple concerns entangled. Well-separated concerns change for a single reason each.","variant":"tip"},"type":"callout"},{"data":{"content":"**Technique 3: The Verbal Description Test**\n\nDescribe what a component does in plain English. If you find yourself using the word **'and'** frequently, you're likely describing multiple concerns:\n\n*Poor (multiple concerns):* \"This class handles user registration **and** sends welcome emails **and** logs the new user **and** validates email uniqueness.\"\n\n*Better (focused concerns):*\n- \"This class orchestrates the user registration process.\"\n- \"This class sends templated emails to users.\"\n- \"This class validates email uniqueness against the database.\"\n- \"This class logs significant user events.\"\n\nEach simple description points to a single concern."},"type":"text"},{"data":{"items":["Can you name this functionality in 2-3 words? If not, it may be multiple concerns.","Would this functionality make sense in a different application? Universal applicability often indicates a separable concern.","Does this functionality change for a single, identifiable reason? Multiple change drivers suggest multiple concerns.","Can you imagine testing this aspect independently? Testability indicates separability.","Would a different team member naturally own this? Organizational ownership often aligns with concerns.","Does this functionality have its own vocabulary or domain terms? Distinct terminology suggests a distinct concern."],"title":{"icon":"Search","text":"Concern Identification Checklist","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"}],"titleType":"number","titleNumber":4},{"id":"granularity-of-concerns","title":"Granularity of Concerns","content":[{"data":{"content":"Concerns exist at multiple levels of granularity. A common mistake is applying separation of concerns at too fine or too coarse a level. Understanding the hierarchy of concerns helps you make appropriate decisions about where to invest in separation.\n\n**Concern Hierarchy:**\n\nConcerns can be analyzed at progressively finer levels of detail:"},"type":"text"},{"data":{"rows":[["System","Entire product or platform","E-commerce vs CMS vs Analytics","Separate systems, APIs, deployments"],["Subsystem/Bounded Context","Major functional area","Ordering, Inventory, Payments, Shipping","Microservices, modules, packages"],["Component/Service","Coherent functional unit","Order validation, price calculation, notification","Classes, services, functions"],["Aspect","Cross-cutting behavior","Logging, security, transaction management","Aspects, middleware, decorators"],["Method/Function","Single operation","Calculate discount, format date, validate email","Functions, private methods"]],"caption":"Levels of Concern Granularity","headers":["Level","Scope","Examples","Typical Separation Mechanism"]},"type":"table"},{"data":{"code":"$73","fileName":"granularity-examples.ts","language":"typescript"},"type":"code"},{"data":{"icon":"AlertCircle","title":"Finding the Right Granularity","content":"Too fine-grained separation creates fragmentation—dozens of tiny classes that individually make no sense. Too coarse-grained separation fails to achieve any real separation—a few massive classes with everything tangled together. The right granularity is where each unit has a clear, coherent purpose and changes for a single reason. This is art as much as science.","variant":"warning"},"type":"callout"}],"titleType":"number","titleNumber":5},{"id":"concerns-in-paradigms","title":"Concerns Across Programming Paradigms","content":[{"data":{"content":"The concept of concerns transcends any specific programming paradigm, but different paradigms offer different mechanisms for expressing and separating concerns.\n\n**Object-Oriented Programming:**\n\nOOP provides classes and interfaces as the primary mechanism for separating concerns. Each class ideally represents a single concern, and interfaces define the contracts between concerns:"},"type":"text"},{"data":{"code":"// OOP: Classes encapsulate concerns\ninterface OrderRepository {\n save(order: Order): Promise; // Persistence concern\n findById(id: string): Promise;\n}\n\ninterface PaymentProcessor {\n process(amount: Money): Promise; // Payment concern\n}\n\ninterface NotificationService {\n notify(user: User, message: Message): Promise; // Notification concern\n}\n\n// Concerns are composed via dependency injection\nclass OrderService {\n constructor(\n private repository: OrderRepository,\n private payment: PaymentProcessor,\n private notifications: NotificationService\n ) {}\n \n async createOrder(order: Order): Promise {\n // This method orchestrates but doesn't implement the concerns\n await this.repository.save(order);\n await this.payment.process(order.total);\n await this.notifications.notify(order.user, orderConfirmation(order));\n }\n}","fileName":"oop-concerns.ts","language":"typescript"},"type":"code"},{"data":{"content":"**Functional Programming:**\n\nFP separates concerns through pure functions and composition. Each function addresses a single transformation, and concerns are separated by avoiding side effects:"},"type":"text"},{"data":{"code":"$74","fileName":"fp-concerns.ts","language":"typescript"},"type":"code"},{"data":{"content":"**Aspect-Oriented Programming:**\n\nAOP provides explicit mechanisms for separating cross-cutting concerns (those that span multiple components) from primary logic:"},"type":"text"},{"data":{"code":"$75","fileName":"aop-concerns.ts","language":"typescript"},"type":"code"},{"data":{"icon":"Info","title":"Paradigm Agnostic Principle","content":"Regardless of paradigm, the goal remains the same: organize code so that each piece has a clear, single purpose and can be understood, modified, and tested in relative isolation. The paradigm provides the tools; the principle guides their use.","variant":"note"},"type":"callout"}],"titleType":"number","titleNumber":6},{"id":"practical-exercises","title":"Identifying Concerns: Practical Exercises","content":[{"data":{"content":"Let's apply what we've learned to analyze real code and identify its concerns. These exercises build the analytical muscle needed for effective separation.\n\n**Exercise 1: The God Function**\n\nExamine the following function and identify all distinct concerns:"},"type":"text"},{"data":{"code":"$76","fileName":"exercise-god-function.ts","language":"typescript"},"type":"code"},{"data":{"type":"ordered","items":["**Request Parsing** — Extracting data from the HTTP request body","**Input Validation** — Checking email format and password length","**Uniqueness Verification** — Checking if email is already registered","**Password Security** — Hashing passwords before storage","**User Persistence** — Storing the user in the database","**Token Generation** — Creating an authentication JWT","**Email Notification** — Sending the welcome email","**Analytics Tracking** — Recording the registration event","**Performance Logging** — Timing and logging the operation","**Response Formatting** — Setting cookies and JSON response","**Error Handling** — Catching and responding to failures","**Alerting** — Notifying operations of failures"],"title":{"icon":"CheckSquare","text":"Concerns in the Registration Function","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"},{"data":{"icon":"Lightbulb","title":"The Separation Challenge","content":"Notice how this 'simple' function embeds 12+ distinct concerns in roughly 50 lines. Each concern could change independently: validation rules might evolve, email templates might change, analytics providers might switch. Yet they're all tangled together. In the next pages, we'll learn techniques for isolating these concerns, making each one testable and modifiable on its own.","variant":"tip"},"type":"callout"}],"titleType":"number","titleNumber":7},{"id":"summary","title":"Summary: Identifying Concerns","content":[{"data":{"content":"Identifying concerns is the foundational skill for separation of concerns. Before you can separate, you must see. Let's consolidate what we've learned:"},"type":"text"},{"data":{"type":"ordered","items":["**A concern is a coherent area of interest** — any distinct aspect of functionality that can be identified, named, and discussed independently.","**Concerns exist in categories** — functional vs non-functional, domain vs technical. Each category brings different considerations.","**Common concerns recur across systems** — authentication, validation, persistence, logging, and others appear in nearly every application.","**Use systematic techniques** — the 'Why' chain, stakeholder lens, change driver test, and verbal description test help uncover hidden concerns.","**Granularity matters** — concerns exist at system, subsystem, component, aspect, and method levels. Choose appropriate granularity for separation.","**Programming paradigms offer different tools** — OOP uses classes, FP uses pure functions, AOP uses aspects. The principle transcends the mechanism."],"title":{"icon":"CheckCircle","text":"Key Takeaways","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"},{"data":{"content":"**What's Next:**\n\nNow that we can identify concerns, the next page explores **Isolating Concerns**—the techniques and patterns for actually achieving separation in code. We'll learn how to structure systems so that each concern lives in its own space, interacting with others through well-defined boundaries."},"type":"text"},{"data":{"icon":"CheckCircle","title":"Page Complete","content":"You now understand what concerns are and how to identify them systematically. This analytical skill is the foundation for all separation of concerns work—you can't separate what you can't see. In the next page, we'll learn how to translate this understanding into structured, well-organized code.","variant":"success"},"type":"callout"}],"titleType":"number","titleNumber":8}],"isLocked":false},{"id":"seed_275c37295285f84cf0f0aa29b9ac48e6","title":"Isolating Concerns","order":1,"content":null,"isLocked":true},{"id":"seed_341f66aa32c8cbaf66926b0514ad732f","title":"Cross-Cutting Concerns","order":2,"content":null,"isLocked":true},{"id":"seed_835298ae287a4c4dc915d09b3b90cd27","title":"Concern Separation in Architecture","order":3,"content":null,"isLocked":true}]}},"dataUpdateCount":1,"dataUpdatedAt":1792196631603,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningContent","getModule"],{"input":{"slug":"separation-of-concerns"},"type":"query"}],"queryHash":"[[\"learningContent\",\"getModule\"],{\"input\":{\"slug\":\"separation-of-concerns\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631669,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792196631631,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningContent","getProgress"],{"input":{"moduleId":"seed_0e997b34ce7139995e9c353b35bd22ea"},"type":"query"}],"queryHash":"[[\"learningContent\",\"getProgress\"],{\"input\":{\"moduleId\":\"seed_0e997b34ce7139995e9c353b35bd22ea\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631669,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792196631631,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["feedback","get"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_341f66aa32c8cbaf66926b0514ad732f"},"type":"query"}],"queryHash":"[[\"feedback\",\"get\"],{\"input\":{\"contentId\":\"seed_341f66aa32c8cbaf66926b0514ad732f\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631669,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792196631631,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["feedback","getUserLike"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_341f66aa32c8cbaf66926b0514ad732f"},"type":"query"}],"queryHash":"[[\"feedback\",\"getUserLike\"],{\"input\":{\"contentId\":\"seed_341f66aa32c8cbaf66926b0514ad732f\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631669,"state":{"data":{"json":[]},"dataUpdateCount":1,"dataUpdatedAt":1792196631631,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["highlights","getHighlights"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_341f66aa32c8cbaf66926b0514ad732f"},"type":"query"}],"queryHash":"[[\"highlights\",\"getHighlights\"],{\"input\":{\"contentId\":\"seed_341f66aa32c8cbaf66926b0514ad732f\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792196631669,"state":{"data":"$undefined","dataUpdateCount":0,"dataUpdatedAt":0,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"pending","fetchStatus":"fetching"},"queryKey":[["highlights","getPopularHighlights"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_341f66aa32c8cbaf66926b0514ad732f","minCount":2},"type":"query"}],"queryHash":"[[\"highlights\",\"getPopularHighlights\"],{\"input\":{\"contentId\":\"seed_341f66aa32c8cbaf66926b0514ad732f\",\"contentType\":\"LEARNING_PAGE\",\"minCount\":2},\"type\":\"query\"}]","promise":"$@77"}]},"children":"$L78"}]