The reason is the perceived cost of using these techniques as this, chapter will show that many usability.Techniques can be used quite cheaply. It should be no surprise however that practitioners view usability,,,Methods as expensive, example considering for, a that paper in the widely read and very respected journal.Communications of the ACM estimated that the "costs required to add human factors elements to the.Development of software "was, $128 330 [Mantei and Teorey 1988]. This sum is several times the total budget.For usability in most, smaller companies and one interface evangelist has actually found it necessary to warn.Such small companies against believing the CACM estimate.
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