Web application development begins by defining user roles, primary scenarios, and the data model. A solid MVP concentrates on essential flows, intuitive navigation, and consistent UI components, enabling the product to ship rapidly without becoming a fragile collection of one-off screens.

Post-launch, scalability and reliability are paramount: performance budgets, caching, secure authentication, and clean API contracts. With proper monitoring, CI/CD, and thoughtful architecture, teams can iterate more quickly while keeping the codebase stable as features and traffic expand.