The prototyping stage is where you bring your ideas to life by creating a simple and tangible model of your product. This could be as basic as a hand-drawn sketch or as detailed as an interactive digital mockup. The goal is to visualize and test how your solution will work in the real world. For example, if you're designing a new mobile app, you might create wireframes showing how each screen looks and functions.

Prototyping allows you to explore different designs, identify potential issues, and gather early feedback from users. This helps you refine your ideas and make improvements before investing time and resources into full development.