Martin Kessner

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Six professional usability testing teams conducted a usability test on an early prototype of a dialog box. Altogether, they identified 36 usability problems. No problem was detected by every team, 2 were found by five teams, 4 by four teams, 7 by three teams, 7 by two teams, and 18 problems were identified by one team only. There was more agreement among(More)
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