Abstract
In this study, two different usability-testing methods (Heuristic Evaluation and User Testing) were selected to test the usability of a pre-release version of software searching for Science, Mathematics and Engineering education materials. Our major goal is to compare Heuristic Evaluation and User Testing in terms of efficiency, effectiveness and cost/benefit analysis. We found that Heuristic Evaluation was more efficient than User Testing in finding usability problems (41 vs. 10), while User Testing was more effective than Heuristic Evaluation in finding major problems (70% vs.12%). in general, Heuristic Evaluation appears to be more economic in finding a wide range of usability problems by incurring a low cost in comparison to User Testing. However, User Testing can provide more insightful data from real users such as user's performance and satisfaction.
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