Web application design is the process of planning how a website or web app will look, work, and feel so users can use it easily and the system runs smoothly.

How it works

It usually starts with figuring out what the app should do and who will use it. Then designers plan how pages connect, where buttons and forms go, and how data moves between the browser and the server. Good design also thinks about speed, security, and how the app will grow in the future.

Analogy

It’s like designing a house. You don’t just start building — you plan where the doors, rooms, and windows go so people can move around comfortably. Web app design is the same: you plan structure and flow so users can “walk” through the app without getting lost.