A metric for hypertext usability
SIGDOC '91 Proceedings of the 9th annual international conference on Systems documentation
Usability inspection methods
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)
Measuring Web Application Quality with WebQEM
IEEE MultiMedia
Aggregation operators: properties, classes and construction methods
Aggregation operators
An axiomatic approach of the discrete Choquet integral as a tool to aggregate interacting criteria
IEEE Transactions on Fuzzy Systems
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Usability is a multifaceted concept that is usually evaluated in terms of a number of aspects or attributes that are not independent but interacting, due to their correlation or to concrete, context-specific design interests. In consequence, the aggregation of partial scores should be carried out by devices that are able of taking into account these interactions in the resulting overall score. In this paper, we describe how fuzzy measures can be used and evaluated as models of a number of the interactions between usability aspects in evaluation processes. It is also described how they can be subsequently used to obtain more realistic final scores by using aggregation operators that are based on that measures, like the Choquet integral.