REDCAAP Framework for Frontend SD RE — Requirements Functional Requirements Core features & user interactions User stories & use cases Non-Functional Requirements Performance (latency, load time) Accessibility (a11y) Scalability & availability Compatibility (devices, browsers) Security Localization / i18n D — Design Patterns & Architecture Decision MVC vs MVVM vs MVP SPA vs MPA Monolithic SPA vs Micro-frontend Component-based vs Monolithic UI Unidirectional vs Bidirectional data flow Rendering Strategy (CSR/SSR/SSG/ISR/Hybrid) C — Component & Hierarchy Break UI into modular, reusable components Single Responsibility per component Component hierarchy definition State management within components Avoid unnecessary re-renders A — Architecture (HLD) Modular frontend components → cohesive UI Frontend components → Backend service mapping State management layer design Routing architecture Infrastructure (CDN, CI/CD, Service Workers) A — API Design Choose API style (REST / GraphQL / gRPC /…