Analogies have been a major part of how we explain usability, user experience and/or design thinking to audiences and clients (and potential clients). Many of these analogies involve automotive technology ( see e.g. Crash-test dummies and the Usability of EHRs http://www.theusabilitypeople.com/thought_leadership/crash-test-dummies-... ).
The Usability People would welcome the opportunity to work with you on improving the Usability of Healthcare IT.
For expert Safety-enhanced Design (aka Usability) evaluation of your EHR: contact The Usability People
Together we may save a life! #SafeHealthIT