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A usability-evaluation metric based on a soft-computing approach

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Open access
Authors
Chang, Elizabeth
Dillon, Tharam S.
Date
2006
Type
Journal Article

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Citation
Chang, Elizabeth and Dillon, Tharam. 2006. A usability-evaluation metric based on a soft-computing approach. IEEE Transactions on Systems, Man, and Cybernetics 36 (2): 356-372.
Source Title
IEEE Transactions on Systems, Man, and Cybernetics
Faculty
Curtin Business School
School of Information Systems
School
Centre for Extended Enterprises and Business Intelligence
Remarks

Copyright 2006 IEEE

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Abstract

Usability of software should measure both the user preference and user performance. The notion of usability involves several dimensions. These dimensions include: system feedback, consistency, error prevention, performance/efficiency, user like/dislike, and error recovery. Each of these dimensions is characterized by fuzzy aspects and linguistic terms. This paper develops a model for each of the dimensions using fuzzy-set theory. It then uses the Takagi-Sugeno fuzzy-inference approach for developing an overall measure of usability. Results are presented for several different user interfaces.