A medium or highly detailed static representation of the design. A good mockup demonstrates the information structure, content and basic functionality in static form. Moreover, mockups make it easy to perceive the idea of the final product, and the process of mockup creation is less time-consuming compared to prototypes.

A term that gets thrown around often in work environments, mockups are static representations of a product. You can’t click through them or interact with them. They are essentially a picture of what the product will look like.