Errors in computerized office work: differences between novice and expert users
ACM SIGCHI Bulletin
Comparison of empirical testing and walkthrough methods in user interface evaluation
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Cognitive abilities and information system usability
Information Processing and Management: an International Journal
Human-computer interaction (2nd ed.)
Human-computer interaction (2nd ed.)
CHI '87 Proceedings of the SIGCHI/GI Conference on Human Factors in Computing Systems and Graphics Interface
The evaluator effect in usability tests
CHI 98 Cconference Summary on Human Factors in Computing Systems
Measuring usability: are effectiveness, efficiency, and satisfaction really correlated?
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Usability Engineering
Beyond Interaction Design: Beyond Human-Computer Interaction
Beyond Interaction Design: Beyond Human-Computer Interaction
Handbook of Usability Testing: How to Plan, Design, and Conduct Effective Tests
Handbook of Usability Testing: How to Plan, Design, and Conduct Effective Tests
C&C '02 Proceedings of the 4th conference on Creativity & cognition
CHI '00 Extended Abstracts on Human Factors in Computing Systems
Effects of display blurring on the behavior of novices and experts during program debugging
CHI '05 Extended Abstracts on Human Factors in Computing Systems
What happened to remote usability testing?: an empirical study of three methods
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Longitudinal study of continuous non-speech operated mouse pointer
CHI '07 Extended Abstracts on Human Factors in Computing Systems
Enhancing input device evaluation: longitudinal approaches
CHI '09 Extended Abstracts on Human Factors in Computing Systems
Exploring the effects of experience on wiki anxiety and wiki usability: an online study
Proceedings of the 23rd British HCI Group Annual Conference on People and Computers: Celebrating People and Technology
A comparative longitudinal study of non-verbal mouse pointer
INTERACT'07 Proceedings of the 11th IFIP TC 13 international conference on Human-computer interaction - Volume Part II
A gestures and freehand writing interaction based electronic meeting support system with handhelds
ODBASE'06/OTM'06 Proceedings of the 2006 Confederated international conference on On the Move to Meaningful Internet Systems: CoopIS, DOA, GADA, and ODBASE - Volume Part I
A longitudinal review of Mobile HCI research methods
MobileHCI '12 Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services
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We report from a longitudinal laboratory-based usability evaluation of an interactive system. A usability evaluation was conducted with novice users when a large commercial electronic patient record system was being deployed in the use organization. After the users had used the system in their daily work for 15 months, same evaluation was conducted again. Our aim was to inquire into the nature of usability problems experienced by novice and expert users over time, and to see to what extends usability problems may or may not disappear over time, as users get more familiar with the system. On the basis of our two usability evaluations, we present key findings on the usability of the evaluated system as experienced by the two categories of users at these two different points in time. Based on our findings, we discuss implications for evaluating usability.