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Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
Usability Testing: analyzing data
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Usability Testing: analyzing data

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Transcript

  • 1. • Compile • Summarize data • Analyze data • Develop recommendations • Produce the final reportWednesday, March 28, 12
  • 2. Data AnalysisWednesday, March 28, 12
  • 3. next 2 weeks:Wednesday, March 28, 12
  • 4. Wednesday, March 28, 12
  • 5. Wednesday, March 28, 12
  • 6. Step 1: CompileWednesday, March 28, 12
  • 7. Wednesday, March 28, 12
  • 8. Get it into a pile.Wednesday, March 28, 12
  • 9. Get your piles sorted.Wednesday, March 28, 12
  • 10. Ideally:Wednesday, March 28, 12
  • 11. compile as you test.Wednesday, March 28, 12
  • 12. further test the test.Wednesday, March 28, 12
  • 13. keep the data legible.Wednesday, March 28, 12
  • 14. • Type handwritten notes • Verify data captures • Back up filesWednesday, March 28, 12
  • 15. Organize raw data.Wednesday, March 28, 12
  • 16. Do whatever it takes to get it done.Wednesday, March 28, 12
  • 17. • lists • tallies • matrices • stories • structure models • flow diagramsWednesday, March 28, 12
  • 18. Wednesday, March 28, 12
  • 19. Wednesday, March 28, 12
  • 20. Wednesday, March 28, 12
  • 21. Wednesday, March 28, 12
  • 22. Goal:Wednesday, March 28, 12
  • 23. Wednesday, March 28, 12
  • 24. Step 2: summarizeWednesday, March 28, 12
  • 25. 1. task accuracyWednesday, March 28, 12
  • 26. number of errors made per taskWednesday, March 28, 12
  • 27. • categorize errors by type • ommission • commissionWednesday, March 28, 12
  • 28. # of participants who performed: • successfully • successfully but with some assistance • assistance types, tasks, productsWednesday, March 28, 12
  • 29. Vital Statistics:Wednesday, March 28, 12
  • 30. % performing successfully, including those who needed assistance • regardless of time limits • regardless of assistance neededWednesday, March 28, 12
  • 31. If this percentage is very low, you’ve got a serious problem.Wednesday, March 28, 12
  • 32. % performing successfully • including those who corrected errorsWednesday, March 28, 12
  • 33. % performing successfully within benchmark • indicative of efficiencyWednesday, March 28, 12
  • 34. 2. task timingsWednesday, March 28, 12
  • 35. Wednesday, March 28, 12
  • 36. summarize preference dataWednesday, March 28, 12
  • 37. Limited choice questions: • Sum by choice • Chart trendsWednesday, March 28, 12
  • 38. Free-form questions: • Group into meaningful categories • Ex: particular screen, doc section, etc.Wednesday, March 28, 12
  • 39. Summarize other measures • Unnecessary returns to main navigation • Number/type of hints and prompts • Times site map was accessed • Points of hesitation (and for how long)Wednesday, March 28, 12
  • 40. Summarize by Group/VersionWednesday, March 28, 12
  • 41. (see pages 255 - 259)Wednesday, March 28, 12
  • 42. 3: analyze dataWednesday, March 28, 12
  • 43. What didn’t succeed?Wednesday, March 28, 12
  • 44. Wednesday, March 28, 12
  • 45. What were the difficulties?Wednesday, March 28, 12
  • 46. What were the error sources?Wednesday, March 28, 12
  • 47. Prioritize problems by severityWednesday, March 28, 12
  • 48. Severity descriptions & definitions: p. 262Wednesday, March 28, 12

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