System Design Architecture Blueprints & Interview Case Studies
Review end-to-end architecture blueprints for real-world platforms: URL Shortener, Notification Service, and Distributed Rate Limiter.
System Design Interview Blueprint
### 4-Step System Design Interview Framework
1. **Understand Requirements & Scope**: Define Functional requirements, Non-Functional metrics (QPS, Latency, Storage).
2. **High-Level Design**: Sketch client, load balancer, API gateway, microservice blocks, cache, database.
3. **Deep Dive Key Components**: Bottlenecks, caching invalidation, sharding key selection, message queue replay.
4. **Wrap-up & Trade-offs**: Discuss SPOFs (Single Points of Failure), monitoring, and failure recovery.