03-System Design Roadmap: LLD and HLD Guide

Your complete path to mastering Low-Level and High-Level Design

📅 May 21, 2026

📝 Topics Covered

  1. 1. When to Start Learning System Design
    • Video walkthrough & baseline expectations
  2. 2. High-Level Design (HLD)
    • Macro plans, blueprints, and business integration
  3. 3. Low-Level Design (LLD)
    • Micro-planning, class layouts, and actionable components
  4. 4. Differences Between HLD and LLD
    • 4.1 HLD vs. LLD Focus Areas
    • 4.2 Macro vs. Micro Architecture
    • 4.3 Development Chronology
    • 4.4 Target Audience
  5. 5. System Design (HLD & LLD) Roadmaps
    • 5.1 7-Week Step-by-Step Study Guide
    • 5.2 Transitioning from HLD to LLD
  6. 6. Recommended Reading (System Design Books)
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System Design: Complete Introduction and Basics

The foundational concepts of high-level system design

📅 Mar 20, 2026

📝 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

📅 Mar 21, 2026

📝 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

📅 Mar 22, 2026

📝 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

📅 Mar 23, 2026

📝 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

📅 Mar 24, 2026

📝 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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