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Title: Comparative Evaluation of Usability Tests


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Topic(s): User Testing (17), Research (35)


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Research reports comparing multiple teams testing of the same product.

In this research study, nine teams of usability engineers tested and the results were compared to see what was similar and what was different.

Some of the results:

  • 75% of the errors were found by only 1 team
  • "If Hotmail is typical, then the total number of usability problems for a typical web-site is huge, much larger than you can hope to find in one series of usability tests"

The details are in the form of Word, PDF and PowerPoint files, largely from a CHI 99 panel.

Added/Updated: June 22, 1999

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Link verified by a robot: December 30, 2002 (or later).
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