What type of model is utilized extensively in engineering to show how a concept works?

The use of a prototype in engineering is key because it serves as a tangible representation of the concept being developed. Prototypes are often built to test and validate ideas, allowing engineers to evaluate the feasibility, functionality, and overall design of a product before moving to full-scale production. They can range from simple, low-fidelity representations to more complex, high-fidelity versions that closely simulate the final product.

By building and testing a prototype, engineers can identify issues, gather user feedback, and make necessary modifications, thus refining the design. This iterative process is critical in engineering, as it significantly reduces risks and uncertainties associated with the final product, leading to better outcomes and innovations based on real-world insights.