Building a web application begins by outlining user roles, main use cases, and the data schema. A solid MVP emphasizes essential flows, intuitive navigation, and consistent UI elements, enabling the product to ship rapidly without becoming a fragile collection of ad-hoc screens.

Post-launch, scalability and reliability take center stage: performance budgets, caching strategies, secure authentication, and clean API contracts. With solid monitoring, CI/CD pipelines, and careful architecture, teams can iterate more quickly while preserving codebase stability as features and traffic expand.