Heuristic evaluation of user interfaces
CHI '90 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
User action graphing effort (UsAGE)
CHI '95 Conference Companion on Human Factors in Computing Systems
User and task analysis for interface design
User and task analysis for interface design
Effects of training and representational characteristics in icon design
International Journal of Human-Computer Studies
Handbook of Usability Testing: How to Plan, Design, and Conduct Effective Tests
Handbook of Usability Testing: How to Plan, Design, and Conduct Effective Tests
Usable secure mailing lists with untrusted servers
Proceedings of the 8th Symposium on Identity and Trust on the Internet
Automatic detection of users' skill levels using high-frequency user interface events
User Modeling and User-Adapted Interaction
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This study presents a cross-user usability test approach and analysis technique that extends beyond merely identifying the existence of a usability problem to introducing an empirical basis for identifying the type of usability problem that exists. For experimental purposes, 60 users were tested with three levels of user-competency determined by experience in using: (1) computers, and (2) the tested application. Applying the Tukey honestly significant difference (HSD) test to each test element provided statistical comparison between different experience levels. Analysis results between experience levels suggested which levels encountered usability problems. The authors demonstrate that statistical calculations of cross-user data can render empirical support for categorizing usability problems.