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Usability of a mobile electronic medical record prototype: a verbal protocol analysis
Robert C Wu1, M Scott Orr, Mark Chignell
1Knowledge Translation Program, University of Toronto, Canada. robert.wu@uhn.on.ca
Informatics for Health & Social Care
|July 8, 2008
Summary
Physicians can use mobile electronic medical records (EMRs) in realistic scenarios. Widespread adoption of mobile EMRs requires a fast, time-saving system with intuitive data entry and improved display features.
Area of Science:
- Health Informatics
- Human-Computer Interaction
- Medical Usability
Background:
- Point-of-care access to electronic medical records (EMRs) can improve patient safety by providing timely information.
- Usability challenges exist in delivering EMRs on handheld devices, with uncertain clinician adoption rates.
Purpose of the Study:
- To develop and evaluate a prototype mobile electronic medical record (EMR).
- To assess the usability of a mobile EMR system for physicians in clinical scenarios.
Main Methods:
- An iterative design process was employed for prototype development and evaluation.
- Physicians participated in usability sessions, using a 'think aloud' protocol during clinical scenarios.
- Verbal protocol analysis of session transcripts identified common themes and usability issues.
Main Results:
- Five family physicians and four internists evaluated the mobile EMR prototype.
- Physicians successfully completed 52 of 54 required tasks, indicating functional usability.
- Key user feedback highlighted the need for speed, time-saving features, intuitive data entry, and improved screen readability.
Conclusions:
- Physicians can utilize mobile EMRs in realistic clinical settings.
- Widespread adoption hinges on meeting specific requirements: a fast system, efficient data selection and entry, and enhanced display capabilities.
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