Usability inspection methods
Guidelines for designing usable World Wide Web pages
Conference Companion on Human Factors in Computing Systems
Measuring usability: are effectiveness, efficiency, and satisfaction really correlated?
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
The state of the art in automating usability evaluation of user interfaces
ACM Computing Surveys (CSUR)
Designing Web Usability: The Practice of Simplicity
Designing Web Usability: The Practice of Simplicity
Web Style Guide: Basic Design Principles for Creating Web Sites
Web Style Guide: Basic Design Principles for Creating Web Sites
Uncertainty-Based Information: Elements of Generalized Information Theory
Uncertainty-Based Information: Elements of Generalized Information Theory
A Practical Guide to Usability Testing
A Practical Guide to Usability Testing
IEEE Internet Computing
Age group differences in world wide web navigation
CHI EA '97 CHI '97 Extended Abstracts on Human Factors in Computing Systems
Membership functions I: Comparing methods of measurement
International Journal of Approximate Reasoning
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Vagueness is an inherent property of man-machine systems associated with some perceptual and cognitive characteristics of human information processing, as pointed out by Karwowski and other researchers. More concretely, some perceivable characteristics of interface designs, including sizes and quantities, are usually perceived by humans as vague categories that result in imprecise guidelines for interface usability. In this paper, we describe how such categories - in the specific case of the Web - can be modelled as fuzzy sets by using conventional membership function elicitation procedures, using Web page length and number of links as case studies. The resulting fuzzy sets can then be used for automated usability analysis processes using fuzzy rules to formalize vague guidelines.