Building a web application begins by outlining user roles, main use cases, and the data structure. A strong MVP concentrates on essential flows, intuitive navigation, and consistent UI elements, enabling quick delivery without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and dependability take center stage: performance budgets, caching strategies, secure sign-in, and tidy API definitions. With adequate observability, continuous integration/delivery, and well-considered architecture, teams can iterate rapidly while preserving codebase stability as features and traffic expand.