A COMPARISON OF DIRECT USER TESTING IN DIFFERENT ENVIRONMENTAL CONTEXTS
Paul T. McCabe · 2003
The purpose of conducting a usability evaluation of an interface is to assess whether a system meets specified user performance objectives, and to identify usability problems that prevent these objectives from being achieved (Karat, 1994). Practitioners apply usability techniques in order to complete these evaluations; these techniques can be classified under two different categories; direct user testing and usability inspection methods (i.e. heuristic evaluation, cognitive walkthrough) (Nielson, 1994).