A comparison of usability techniques for evaluating design

Abstract

We report on a series of experiments designed to compare usability testing methods in a novel information retrieval interface. The purpose of this ongoing work is to investigate the problems people encounter while performing information retrieval tasks, and to assess evaluation methods by looking at the problem focus, the quality of the results and the cost effectiveness of each method. This ftrst communication compares expett evaluation using heuristics [15] with end user testing [24].