What is a prototype?

A prototype serves as an important tool in the design and development process by allowing designers and stakeholders to interact with a tangible version of their idea. It can take various forms, such as a working model, a simulation, or even an interactive mock-up, enabling users to experience the design before it reaches its final state. This interaction provides valuable insights into functionality, usability, and overall experience, making it a critical part of refining a concept.

While the other options involve concepts related to the design process, they do not encapsulate the essence of a prototype as effectively as the correct choice. For instance, a complete final product is beyond the scope of what a prototype represents. A low-fidelity representation might refer to something like sketches or wireframes, which, while useful, do not fully allow user interaction in the same way that a prototype does. A theoretical concept lacks the practical aspect of design engagement that a prototype offers, making it less applicable in the context of user experience. Thus, the correct understanding of a prototype emphasizes its role in providing a physical or interactive aspect that can be tested and evaluated.