Belden nist 13_july2010

EHR  usability:  an  illustrated  guide  

My  comments  

•  10  principles  of  usability,  illustrated  •  Build  Style  Guides  &  Galleries  •  Foster  research  on  visual  display  

What  is  usability?  EMR

^

Usability  is…  

10  Principles  

1.  Simplicity  

2.  Naturalness  3.  Consistency  4.  Minimizing  cogniNve  

load  5.  Efficient  interacNons  6.  Forgiveness  

h3p://bit.ly/UsabilityHIMSS  

7.  Feedback  8.  EffecNve  use  of  

language  

9.  EffecNve  informaNon  presentaNon  

10. PreservaNon  of  context  

Simplicity  

For doing refills

For overview only

Simplicity

Naturalness  

Naturalness

Old way – lots of drill-down clicking

Naturalness

Better way we know the body already

Consistency  

Consistency  

Name and identifying info consistently placed

Minimizing  CogniNve  Load  

Minimizing  CogniNve  Load  

Exact past dates •  This requires mental math

Minimizing  CogniNve  Load  

Relative past dates • Easier. No extra thinking.

Minimizing  CogniNve  Load  

•  Have  it  both  ways  

Hover to see more detail

Efficient  InteracNons  

Dashboard efficiency Efficient  InteracNons  

Efficient  InteracNons  

•  6  minutes  

50 Clicks…

Efficient  InteracNons  

•  1-­‐2  minutes  

2 Clicks…

Forgiveness  

Forgiveness  

exploring  without  fear  of  destroying  

recovering  gracefully  from  mistakes  

Forgiveness  

A  negaNve  example…  

Feedback  

Feedback  

•  Show  expected  delays  •  Confirm  changes  that  aren’t  evident  

Feedback  

• user clicks • long, slow database call ensues…

Imagine this scenario

Acceptable  

Be`er  

Please  wait  while  we  check  10,357  records…  

Best  

Please  wait  while  we  check  10,357  records…  

Time  remaining…  8  seconds  

EffecNve  Use  of  Language  

Plain  English  for  paNent  

Terse  for  doctor  

EffecNve  InformaNon  PresentaNon  

EffecNve  InformaNon  PresentaNon  Sorted alphabetically, not randomly

Better yet, allow sort by other criteria, too

Filtered for cardiology

EffecNve  Info  PresentaNon  

Highlighted for cardiology

PreservaNon  of  Context  

PreservaNon  of  Context  

And what medication is he/she taking? And what are the weight and BP doing?

Build  Style  Guides  and  galleries  

Usability.gov  

Microsob  Health  Common  User  Interface  

UI  Design  Pa`erns  

Apple  Human  Interface  Guidelines  

Visual  display  of  data    research  agenda  

Lab  fishbone  vs.  data  table  

A                                            B  

Compare:  efficiency,  effecNveness,  safety,  delight  

Sparklines  

Bullet  graph  /  small  mulNples  

Small  mulNples  

QuesNons?  

Jeff  Belden  MD  |  beldenj@health.missouri.edu