CUES: Cognitive Usability Evaluation System.

A Cognitive Usability Evaluation System, CUES, was constructed to allow the simple integration of cognitive data from a commercialized EEG brain scanner, with other common usability measures, such as interaction logs, screen capture, and think aloud. CUES was iteratively evaluated with a small number of participants to understand whether and how the visualisation of EEG data alongside other measures, provided value for usability evaluation. Results indicate that although there are a lot of objective measurements available from the brain scanner, the largest value came from qualitatively identifying EEG patterns, and correlating them with think aloud data. Recommendations for using CUES and for future developments are both provided.