Software analytics in augmented reality (AR) is said to have great potential. One reason why this potential is not yet fully exploited may be usability problems of the AR user interfaces. We present an iterative and qualitative usability evaluation with 15 subjects of a state-of-the-art application for software analytics in AR. We could identify and resolve numerous usability issues. Most of them were caused by applying conventional user interface elements, such as dialog windows, buttons, and scrollbars. The used city visualization, however, did not cause any usability issues. Therefore, we argue that future work should focus on making conventional user interface elements in AR obsolete by integrating their functionality into the immersive visualization.
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