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Mastering System Design - Your Ultimate Learning Journey from Basics to Advanced

System design is a critical skill for software engineers, architects, and tech enthusiasts aiming to build scalable, reliable, and efficient systems. Whether you're preparing for interviews, planning to architect complex applications, or simply want to deepen your understanding, this structured learning path will guide you step-by-step.

Why Learn System Design?

Understanding system design helps you think about:

  • Handling millions of users and huge data volumes
  • Making systems fault-tolerant and highly available
  • Balancing trade-offs between performance, cost, and complexity

The Roadmap: From Fundamentals to Real-World Applications

Here's a detailed schedule that takes you from the foundations of system design to advanced topics and practical system blueprints.

DayTopicFocusVisuals Included
1Introduction to System DesignWhat is system design? Types of systems. Design principlesSystem design overview diagram
2Requirements GatheringFunctional & non-functional requirements, use casesRequirement flowchart
3Scalability ConceptsVertical vs horizontal scaling, load balancing basicsLoad balancer & scaling diagrams
4Database FundamentalsTypes of databases, CAP theorem, SQL vs NoSQLDatabase types infographic
5CachingWhy caching? Types of caches, cache eviction policiesCache hierarchy and flow chart
6Load Balancing & ProxiesTypes of load balancers, reverse proxy, sticky sessionsLoad balancer architecture
7Data Partitioning & ShardingPartitioning strategies, consistent hashingSharding and partitioning visuals
8Messaging Queues & Event-Driven ArchitecturePub/Sub, message queues, asynchronous processingMessaging flow diagrams
9API Design & Rate LimitingRESTful APIs, GraphQL, rate limiting techniquesAPI request flowcharts
10Microservices & MonolithsComparing architectures, pros and consArchitecture comparison diagrams
11Security in System DesignAuthentication, authorization, encryption basicsSecurity flow diagrams
12Monitoring & LoggingMetrics, logs, tracing, alertingMonitoring architecture
13CAP Theorem Deep DiveConsistency, Availability, Partition tolerance in detailCAP theorem triangle
14Designing Real-world Systems IDesign Twitter, WhatsApp basicsSystem block diagrams
15Designing Real-world Systems IIDesign Instagram, Uber basicsInteraction diagrams
16Advanced Topics: Distributed Systems & Consensus AlgorithmsLeader election, Paxos, RaftDistributed system visuals
17Advanced Topics: Data Lakes & Data WarehousesBig data storage & queryingData architecture diagrams
18Final Project & ReviewDesign a system from scratch with all concepts learnedCustomized diagrams

How to Use This Guide

  • Pace yourself: Study at a comfortable rhythm, whether daily or a few times a week.
  • Engage actively: Try to draw your own diagrams as we go.
  • Apply concepts: After theory, practice designing simple systems.
  • Ask questions: I'm here to clarify and deepen your understanding.