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It is pointless - perhaps even damaging - to conduct usability tests merely because testing is fashionable or required by management. ... If designers do not have the time, energy, or authority to make changes, or if they are too deeply attached to their design to be willing to change it, there is no point in asking customers what they want.
-- Laura De Young, in Bringing Design to Software, edited by Terry Winograd, 1996
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