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Unit 5: Fundamentals of Usability in HIT Systems – What Does It Matter? Component 7: Working with...
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Transcript of Unit 5: Fundamentals of Usability in HIT Systems – What Does It Matter? Component 7: Working with...
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Unit 5: Fundamentals of Usability in HIT Systems – What Does It Matter?
Component 7: Working with HIT Systems
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Unit 5: Objectives
• Define usability and its relationship to HIT systems.
• Explain the impact of HIT usability on user satisfaction, adoption, and workarounds including error rates and unintended consequences.
• Provide alternatives to HIT usability bottlenecks.
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Usability Defined
“the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.” ISO 9241-11
Usability is the study of the ease with which people can employ a particular tool or other human-made object in order to achieve a particular goal. Wikipedia
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Jakob Nielsen• Usability – a quality attribute that assesses
how easy user interfaces are to use • 5 6 Components:– Learnability– Efficiency– Memorability– Errors– Satisfaction– Utility
http://www.usability.gov/basics/
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User-Centered Design
ISO 13407: Human-centered design process
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User-Centered Design
Explore how people deal with specific healthcare problems
Observe people in their own environments to assess unmet needs--on top of market research
Study
Understand
Design prototypes of new technology solutions
Develop
Field-test prototypes, listen to the results, iteratively re-design
Pilot
Turn prototypes into new platforms that meet people’s needs
Deliver
Evaluate impact; restart cycle
Evaluate
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“If you dislike change, you're going to dislike irrelevance even more”
Eric Shinseki: 7th US Secretary of Veterans Affairs
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Usability in HIT
• Understanding the user base– Mobile workers– Highly disruptive & stressful situations– Cognitive overload– Restriction of physical space – portability
important– Time compression– Frequent turn-over (patients & providers)– Workarounds are common
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What happens?
• User satisfaction declines & frustration increases
• Increase resistance – failure to adopt• Workarounds• Unintended consequences
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Examples of Poor HIT Usability
• Overly cluttered• Poor use of screen space• Inconsistency in design• Unsortable lists• Hard to read or annotate• Lack of safeguards• Not intuitive
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Why It Matters
• HIT intent is to increase ease of use, safety, efficiency and reduce error
• Increasing pressure• Rushing towards meaningful use• “Quicker and Sicker”• The “Graying of America”
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Strategies for Bottlenecks
• Know your user• Educate • Assure easy access to
workstations/devices• Advocate for integrated systems• Prepare for process change & learning
curves• Systems must support entire care team
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Reviewing the Objectives
• Define usability and its relationship to HIT systems.
• Explain the impact of HIT usability on user satisfaction, adoption, and workarounds including error rates and unintended consequences.
• Provide alternatives to HIT usability bottlenecks.
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This completes Unit 5
Thank you