Building a web application begins by outlining user roles, primary scenarios, and the data model. A robust MVP centers on essential flows, intuitive navigation, and consistent UI elements, enabling rapid delivery without becoming a fragile collection of ad hoc screens.

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