Johnson, C. M., Johnson, T., Zhang, J., Increasing productivity and reducing errors through usability analysis: a case study and recommendations.,
Proceedings / AMIA ... Annual Symposium. AMIA Symposium
(2000),
pp. 394-8, ISSN 1531-605X
(last updated on 2011/02/11)
Abstract:
The usability problems of a system often occur due to inattention to well-documented and well-established design guidelines and heuristics. These problems often lead to increased errors, user dissatisfaction, and often user abandonment. Although there are a plethora of design principles, programs are still being constructed without integration of these principles. One family history-tracking program was examined for usability compliance. In addition to a user analysis, a task analysis was conducted comparing the designers' conceptualization of tasks with the users' conceptualization of these tasks. A cognitive walk-through was then conducted on these tasks. Finally, a keystroke level model was used to show the differences between the execution times of these tasks. This model showed a serious mismatch between the designers and users conceptions of the task. The suggested redesign showed timesaving for each of these tasks.
Keywords:
Attitude to Computers • Consumer Satisfaction* • Databases as Topic* • Delivery of Health Care • Genetic Counseling • Human Engineering • Humans • Neoplasms • Organizational Case Studies • Pedigree • Software Design • Software* • Task Performance and Analysis* • User-Computer Interface* • genetics
