Building a web application begins by outlining user roles, primary scenarios, and the data schema. A robust MVP concentrates on essential flows, intuitive navigation, and consistent UI elements, allowing the product to be released rapidly without becoming a fragile collection of ad-hoc screens.

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