6 research outputs found

    Heuristic evaluation: Comparing ways of finding and reporting usability problems

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    Research on heuristic evaluation in recent years has focused on improving its effectiveness and efficiency with respect to user testing. The aim of this paper is to refine a research agenda for comparing and contrasting evaluation methods. To reach this goal, a framework is presented to evaluate the effectiveness of different types of support for structured usability problem reporting. This paper reports on an empirical study of this framework that compares two sets of heuristics, Nielsen's heuristics and the cognitive principles of Gerhardt-Powals, and two media of reporting a usability problem, i.e. either using a web tool or paper. The study found that there were no significant differences between any of the four groups in effectiveness, efficiency and inter-evaluator reliability. A more significant contribution of this research is that the framework used for the experiments proved successful and should be reusable by other researchers because of its thorough structur

    Supporting Heuristic Evaluation for the Web

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    Web developers are confronted with evaluating the usability of Web interfaces. Automatic Web usability evaluation tools are available, but they are limited in the types of problems they can handle. Tool support for manual usability evaluation is needed. Accordingly, this research focuses on developing a tool for supporting manual processes in Heuristic Evaluation inspection. The research was conveyed in three phases. First, an observational study was conducted in order to characterize the inspection process in Heuristic Evaluation. The videos of evaluators applying a Heuristic Evaluation on a non-interactive, paper-based Web interface were analyzed to dissect the inspection process. Second, based on the study, a tool for annotating Web interfaces when applying Heuristic Evaluations was developed. Finally, a survey is conducted to evaluate the tool and learn the role of annotations in inspection. Recommendations for improving the use of annotations in problem reporting are outlined. Overall, users were satisfied with the tool. The goal of this research, designing and developing an inspection tool, is achieved

    An automated cognitive walkthrough

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