📁 LLD (Low-Level Design) Content Structure Overview

Location: dsa-docs/src/content/docs/lld/ Total Files: 25 files (10 core + 15 projects)

📂 Directory Tree

lld/
├── 📄 index.md
│
├── 📂 (core files)                 (10 files)
│   ├── 01-oop-fundamentals.md
│   ├── 02-solid-principles.md
│   ├── 03-uml-basics.md
│   ├── 04-class-diagrams.md
│   ├── 05-object-relationships.md
│   ├── 06-design-principles.md
│   ├── 07-dependency-injection.md
│   ├── 08-design-pattern-selection.md
│   ├── 09-machine-coding-approach.md
│   └── 10-code-organization.md
│
└── 📂 projects/                    (15 files)
    ├── design-parking-lot.md
    ├── design-elevator-system.md
    ├── design-tic-tac-toe.md
    ├── design-snake-and-ladder.md
    ├── design-chess-game.md
    ├── design-bookmyshow.md
    ├── design-splitwise.md
    ├── design-atm.md
    ├── design-vending-machine.md
    ├── design-hotel-management.md
    ├── design-library-management.md
    ├── design-rate-limiter.md
    ├── design-cache-system.md
    ├── design-logging-framework.md
    └── design-notification-service.md

📜 Content Summary

Core Concepts (10 files):

OOP fundamentals, SOLID principles
UML basics, class diagrams
Object relationships (association, aggregation, composition)
Design principles, dependency injection
Design pattern selection, machine coding approach
Code organization

Machine Coding Projects (15 files):

Project	Key Focus
Parking Lot	Spot management, pricing, ticketing
Elevator System	Scheduling, floor requests, capacity
Tic Tac Toe	Game logic, win detection, multiplayer
Snake and Ladder	Board game logic, dice, players
Chess Game	Move validation, check/checkmate, AI
BookMyShow	Theater, seat selection, booking
Splitwise	Expense sharing, settlements, groups
ATM	Withdrawal, deposit, balance, pin auth
Vending Machine	Inventory, payment, change
Hotel Management	Rooms, booking, billing
Library Management	Catalog, members, borrowing
Rate Limiter	Token bucket, sliding window
Cache System	LRU, LFU, TTL eviction
Logging Framework	Log levels, appenders, formatting
Notification Service	Channels, templates, queue

File Count: 25 files | Created: July 3, 2026