๐Ÿท๏ธ Explore LLD & HLD by Topics

Tag / Topic Category Description & Reference
๐Ÿ“‹ Software-Engineering ๐Ÿ“ SDLC Software Development Life Cycle phases, models, and agile frameworks
๐Ÿงช Software-Testing ๐Ÿ“ SDLC Unit, Integration, System, Acceptance, QA, and TDD strategies
๐Ÿ› ๏ธ Software-Design ๐Ÿ“ LLD Design roadmaps, structural architectures, and engineering principles
๐Ÿ“ Clean-Code ๐Ÿ“ LLD Naming conventions, function structures, comments, and code smells
๐Ÿงฑ OOPS ๐Ÿ“ LLD Encapsulation, Abstraction, Inheritance, Polymorphism, and Relationships
๐Ÿ’Ž SOLID ๐Ÿ“ LLD Single Responsibility, Open-Closed, Liskov, Interface Segregation, & Dependency Inversion
๐ŸŽจ Design-Patterns ๐Ÿ“ LLD Creational, Structural, and Behavioral blueprint solutions
๐Ÿ“Š UML ๐Ÿ“ LLD Unified Modeling Language (Class, Use Case, State, and Activity Diagrams)
๐Ÿ›๏ธ System-Design ๐Ÿ“ HLD High-Level Design (Client-Server, Scalability, Performance, Storage, Partitioning)

08-Behavioral Design Patterns

Chain of Responsibility, Command, Observer, State, Strategy, and more

๐Ÿ“… Mar 15, 2026

๐Ÿ“ Topics Covered

  1. 1. What are Behavioral Patterns?
  2. 2. Chain of Responsibility Design Pattern
  3. 3. Command Design Pattern
  4. 4. Iterator Design Pattern
  5. 5. Mediator Design Pattern
  6. 6. Observer Design Pattern
  7. 7. State Design Pattern
  8. 8. Strategy Design Pattern
  9. 9. Template Method Design Pattern
  10. 10. Visitor Design Pattern
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09-Comprehensive Guide to UML Diagrams

Learn Structural, Behavioral, and Interaction UML Diagrams

๐Ÿ“… Mar 16, 2026

๐Ÿ“ Topics Covered

  1. 1. What is UML?
  2. 2. Benefits of UML
  3. 3. Core Types of UML Diagrams
  4. 4. Class Diagram
  5. 5. Use Case Diagram
  6. 6. State Diagram
  7. 7. Activity Diagram
  8. 8. Sequence Diagram
  9. 9. UML vs. ERD
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System Design: Complete Introduction and Basics

The foundational concepts of high-level system design

๐Ÿ“… Mar 20, 2026

๐Ÿ“ Topics Covered

  1. 1. Introduction to System Design
  2. 2. Client-Server Architecture
  3. 3. Monoliths vs. Microservices
  4. 4. Remote Procedure Calls & gRPC
  5. 5. Foundational Network Protocols
  6. 6. Proxies: Forward & Reverse
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System Design: Scalability and System Architecture

Vertical vs Horizontal Scaling, Load Balancing, and Caching

๐Ÿ“… Mar 21, 2026

๐Ÿ“ Topics Covered

  1. 1. What is Scalability?
  2. 2. Vertical Scaling (Scale Up)
  3. 3. Horizontal Scaling (Scale Out)
  4. 4. Load Balancing
  5. 5. Caching Strategies
  6. 6. System Asynchronism
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System Design: Performance Metrics and the CAP Theorem

Understanding Latency, Throughput, and Consistency vs Availability

๐Ÿ“… Mar 22, 2026

๐Ÿ“ Topics Covered

  1. 1. Performance vs. Scalability
  2. 2. Key Performance Metrics
  3. 3. System Component Performance Indicators
  4. 4. Understanding the CAP Theorem
  5. 5. The CAP Theorem Trade-Offs
  6. 6. Faults, Failures, and Fault Tolerance
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System Design: Data Storage and Replication Strategies

Relational vs NoSQL databases and Data Replication techniques

๐Ÿ“… Mar 23, 2026

๐Ÿ“ Topics Covered

  1. 1. Memory & Storage Systems
  2. 2. Database Classifications
  3. 3. Database Replication Strategies
  4. 4. RAID (Redundant Array of Independent Disks)
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System Design: Database Partitioning and Sharding

Horizontal partitioning, Vertical partitioning, and Sharding techniques

๐Ÿ“… Mar 24, 2026

๐Ÿ“ Topics Covered

  1. 1. What is Database Partitioning?
  2. 2. Why Partition Databases?
  3. 3. Core Partitioning Methods
  4. 4. Sharding Routing Strategies
  5. 5. Understanding Hashing
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