Building a web application begins by outlining user roles, primary use cases, and the data schema. A robust MVP concentrates on essential workflows, intuitive navigation, and stable UI components, enabling rapid delivery without becoming a fragile collection of bespoke screens.

Post-launch, scalability and reliability take precedence: performance budgets, caching, secure authentication, and well-defined API contracts. With effective monitoring, CI/CD, and careful architecture, teams can iterate more quickly while maintaining codebase stability as features and traffic expand.