Web application development begins with identifying user roles, key scenarios, and the data model. A solid MVP concentrates on core flows, intuitive navigation, and predictable UI components, enabling the product to ship rapidly without becoming a fragile collection of one-off screens.

Post-launch, scalability and reliability take center stage: performance budgets, caching, secure authentication, and clean API contracts. With proper monitoring, CI/CD, and thoughtful architecture, teams can iterate faster while keeping the codebase stable as features and traffic grow.