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The cognitive demands of an innovative query user interface
Di Wang1, David R Kaufman, Eneida A Mendonca
1Department of Medical Informatics, Columbia University, New York, NY, USA.
Proceedings. AMIA Symposium
|December 5, 2002
Summary
The PERSIVAL project
Area of Science:
- Health Informatics
- Human-Computer Interaction
- Information Retrieval
Background:
- Online health information searches are often inefficient and imprecise.
- Personalized search and tailored results are needed for clinicians and patients.
Purpose of the Study:
- To cognitively evaluate the Query User Interface (QUI) of the PERSIVAL project.
- To assess the QUI's ability to facilitate intuitive expression of user information needs.
Main Methods:
- Cognitive walkthrough of the QUI.
- Quantitative estimation of cognitive load.
- Preliminary usability testing.
Main Results:
- Some QUI features increase cognitive load and user effort.
- Usability testing results align with cognitive load findings.
- Users found query generation intuitive and relatively easy.
Conclusions:
- The QUI requires design improvements to reduce cognitive load.
- Findings inform the iterative design of the PERSIVAL system.
- The study contributes to developing next-generation personalized health information systems.