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November 24, 2003
Two sigma: Usability and six sigma quality assurance
"On average across many test tasks, users fail 35% of the time when using websites. This is 100,000 times worse than six sigma's requirement, but Web usability can still benefit from a six sigma quality approach." (Jakob Nielsen - Alertbox)
Posted by PJB at November 24, 2003 08:31 AM | TrackBack