Usability Evaluation of Mp3/CD Players: A Multi-Criteria Decision Making Approach
Globalization and the competition obliged the user-oriented design today. In the last years, usability has become a highly important research subject. Usability, considering user satisfaction along with the user performance, is one of the key factors in determining the success of a product in today’s competitive market. Product usability is a prerequisite for high customer satisfaction and future sales of companies. Mp3 players and portable CD players are selected for this study since usability is highly important for them. Designing a usable mp3 or CD player is extremely important for users who have close interaction with them. In this study, 14 different mp3/CD players are selected and their usability is analyzed. The usability criteria used in the mp3/CD players’ evaluation are divided into two major categories: performance and emotional expectations. The best alternative is determined with three different multi-criteria decision making methods which are TOPSIS, Analytic Hierarchy Process (AHP), and Fuzzy Axiomatic Design Theory (FADT). Although the same data obtained from semantic differential experiment are used for all multi-criteria decision making methods, different rankings are obtained from each method.
KeywordsUsability TOPSIS Analytic Hierarchy Process (AHP) Fuzzy Axiomatic Design Theory (FADT) Semantic Differential Scale
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