Which of the following is a method used for testing prototypes?

Prototypes are evaluated using a variety of methods to ensure they meet user needs, function correctly, and are appealing. User testing and functional testing are both crucial methods in this process.

User testing involves real users interacting with the prototype. This method focuses on assessing usability, user experience, and how well the product meets the needs and expectations of its target audience. It provides valuable feedback that can guide further development.

Functional testing, on the other hand, assesses whether the prototype operates as intended. This includes evaluating the technical aspects, such as performance, reliability, and adherence to design specifications. It ensures that the product functions correctly under various conditions.

Combining user testing and functional testing provides a comprehensive understanding of both how the product appeals to users and how effectively it works. This dual approach ensures that any identified issues can be addressed before the product moves to production, enhancing its overall quality and user satisfaction. Other methods like market analysis and aesthetic evaluation, while useful, do not encompass the full scope of prototype testing as effectively as the combination of user and functional testing does.