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Recognising Human Factors In Evaluating User Interfaces In Healthcare - Bridget Kane
 

Recognising Human Factors In Evaluating User Interfaces In Healthcare - Bridget Kane

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    Recognising Human Factors In Evaluating User Interfaces In Healthcare - Bridget Kane Recognising Human Factors In Evaluating User Interfaces In Healthcare - Bridget Kane Presentation Transcript

    • RECOGNISING HUMAN FACTORS INEVALUATING USER INTERFACES INHEALTHCAREB. Kane1, L. Longo 1IRCSET Research Fellow
    • Overview• Background• Method• Results• Conclusion
    • Background – Evaluation of Use• Nielsen’s Heuristics • 10 Usability principles• Aerospace and Automotive Industry• NASA• Healthcare - Context of Use• Pilot
    • Method• Pilot Study• Two House Officers + Two Wards (1 each) • Ward A: 18 Long-Stay Elderly Patients with HIGH Dependency Scores • Ward B: 10 Short-Stay Patients, Respite Care with Lower Dependency Scores than Ward A• Questionnaire on use of EPR – over 5 days • Nielsens’s Heuristics & NASA-TLX• Analysis
    • Nielsen’s Heuristics• Feedback • Minimise User Memory Load• Speak User’s Language • Shortcuts• Clearly marked exits • Simple Dialogue• Consistency • Good Error Messages• Prevent Errors • Help and Documentation
    • NASA-TLX• Mental Demand• Physical Demand• Temporal Demand• Effort• Performance• Frustration
    • Results - Overall Nielsen USAB
    • Results - Overall NASA-TLXAB
    • Results - Overall NASA-TLX – HMWWard A: High Dependency Scenario Ward B: Lower Dependency Scenario
    • Results - Interpretation• Usability of EHR can vary over time• As clinicians approach the end of their working day, performance dramatically declines• As a result of Decreased Performance, more Effort needed• Usability Evaluation methods in Healthcare should be more refined to give better information
    • Conclusion• Nielsen’s Principles, while helpful, do not take into account • Context of System Use • Impact of User’s Mental Workload• Human Factors should be incorporated into System Evaluation in Healthcare• More Research is needed into task issues in healthcare and usability
    • ReferenceL. Longo and B. Kane, 2011,A Novel Methodology for Evaluating User Interfaces in Health CarePages 1-6, 24th IEEE International Symposium on Computer-Based Medical Systems (CBMS), Bristol, EnglandDOI 10.1109/CBMS.2011.5999024
    • Acknowlegements• R. T. Venkateshappa, R. Ravikuma and K. Nagesh for helping in gathering data.• B. Kane is funded through the IRCSET Enterprise Partnership scheme with St. James’s Hospital Board, Dublin• St James’s Hospital Board