Building a web app begins by outlining user roles, main use cases, and the data schema. A robust MVP prioritizes essential paths, intuitive navigation, and consistent UI elements, enabling rapid delivery without becoming a brittle collection of ad-hoc screens.

Post-launch, scalability and dependability take center stage: performance budgets, caching strategies, secure login, and clean API contracts. With solid monitoring, CI/CD, and thoughtful architecture, teams can iterate more quickly while keeping the codebase stable as features and traffic expand.