How can you design with the user in mind?

Design an app that will help people solve a real-world problem. Think of the problem you want to solve and begin creating a prototype. Next, test the prototype with actual users and make improvements based on their feedback (this is called data). Think about how can you make it better and easier for your user.

The programmer should test, analyze data, redesign, and test again in order to get the best version of their program.