What is the main purpose of a usability prototype?

The main purpose of a usability prototype is to test how end users interact with the system. This type of prototype focuses on providing a tangible representation of the user interface and experience, allowing real users to engage with it in a way that simulates actual usage. By observing users as they navigate through the prototype, stakeholders can gather valuable insights about user behavior, preferences, and pain points, which can inform design modifications and enhancements.

Understanding user interaction is crucial as it helps identify usability issues early in the development process, ensuring that the final product will better meet user needs and expectations. This focus on the user experience is essential in developing systems that are not only functional but also intuitive and satisfying for the end user.