Proof of concept might sound like building a prototype, but there are differences, and each has its own function. The POC is a sort of small project to test the idea. POC exists solely to show that a product concept is both functional and can be developed. Creating prototypes is another important exercise. The creation of prototypes is done to help visualize how a product will function in the real world. It shows the design, navigation, layout, etc. Therefore, proof of concept shows that a product idea can be made, and the prototype shows how it’s made. That doesn’t mean these two concepts are mutually exclusive. They share some common ground. That’s because proof of concept shares user feedback with the team, allows them to investigate emerging technologies, and, of course, shows investors and decision-makers that the concept works. Once the POC has proven the project is viable, often a prototype is created.