A prototype helps the design team and client to visualize and handle a design concept, and also to get an idea of its physical presence and tactile qualities. By creating a prototype, the design team can test and refine their ideas, and the client can provide feedback on the design before it is finalized. This can save time and resources in the long run by identifying potential issues early on in the design process. Additionally, prototypes can be shared and tested within the team itself, in other departments, or on a small group of people outside the design team.