Fault Tolerance - Designing Resilient Systems
Complete guide to fault tolerance covering failure modes, redundancy strategies, circuit breakers, graceful degradation, and designing systems that survive failures.
Non-Functional Requirements
System Maintainability - Building Evolvable Systems
Complete guide to system maintainability covering code quality, documentation, modularity, observability, and designing systems that evolve gracefully over time.
System Scalability - Horizontal and Vertical Scaling
Complete guide to scalability covering horizontal and vertical scaling strategies, stateless architecture, caching, database sharding, and handling massive traffic.
System Reliability - Building Dependable Systems
Complete guide to system reliability covering MTBF (Mean Time Between Failures), MTTR (Mean Time To Recovery), fault tolerance, and building dependable distributed systems.
System Availability - Understanding Uptime and SLAs
Complete guide to system availability covering uptime calculations, SLA requirements, five nines availability, redundancy strategies, and high availability architecture.