What is the primary purpose of a prototype in user testing?

The primary purpose of a prototype in user testing is to gather user feedback on a tangible representation of the product. Prototyping allows designers to create a working model or mock-up of their idea, which users can interact with. This interaction is crucial because it offers insights into how users perceive the design, functionality, and usability of the product. Feedback collected during user testing can then inform further design iterations, helping to refine the product to better meet user needs and preferences.

Prototypes can vary in fidelity—from low-fidelity sketches or paper models to high-fidelity representations that look and feel like the final product. Regardless of their form, the key objective is to engage users in a way that quantifies their experiences and expectations. This direct feedback loop is essential in the design process and can lead to significant improvements before final production begins.