Which method is used to assess a product's design and usability?

The method used to assess a product's design and usability is evaluative user research methods. These methods are essential for understanding how users interact with a product and identifying areas for improvement. They often include usability testing, where real users complete tasks with the product while observers note difficulties or confusion, providing direct insights into the user experience.

Evaluative user research specifically focuses on measuring the effectiveness, efficiency, and satisfaction of users as they engage with a design. This approach helps designers make informed decisions based on empirical evidence and user feedback, which can lead to enhancing usability and overall product satisfaction.

In contrast, focus groups gather qualitative opinions from a group of participants but may not provide in-depth insights into individual user experiences with a product’s design. Competitive analysis compares a product to its competitors but focuses primarily on positioning rather than direct user interaction. Market surveys collect broader data about user preferences and behaviors but don’t necessarily evaluate user experience in the context of specific design elements directly. Evaluative user research methods are purposefully targeted at assessing and refining user interface and experience, making them the most direct and relevant choice for gauging a product's design and usability.