Designing a web app begins by outlining user roles, main use cases, and the data structure. A robust MVP prioritizes essential flows, straightforward navigation, and consistent UI elements, enabling fast delivery without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and dependability take precedence: performance targets, caching, safe authentication, and tidy API contracts. With effective monitoring, CI/CD, and careful architecture, teams can iterate more quickly while preserving codebase stability as features and user load expand.