The role of user testing in user interface design is to evaluate the effectiveness, ease of use, and overall user experience of a design with an actual user. Through user testing, designers can gather valuable feedback about how users interact with their design, identify areas where users struggle, and gain insights into how to improve the design. The data collected from user testing can inform decisions about design refinements, identify usability issues and lead to solutions for improvement. By regularly testing their designs with real users, designers can ensure that their products meet user needs, are intuitive and are easy to navigate. Overall, user testing is an essential component of effective user interface design, and it is an important way to ensure that the design meets the needs and expectations of the target audience for which it is created.
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