Univariate and multivariate performance indices in fuzzy environment

Document Type : Original Article

Authors

Abstract

Process efficiency indicators are numerical measures that show the degree of compliance of the products of a process with the specifications considered by customers or manufacturers. If the quality of the products depends on only one variable, univariate indicators are used, otherwise, multivariate indicators are used. When the values related to the variables or limits of the specification are fuzzy, fuzzy performance indicators are used. In this article, several univariate and multivariate fuzzy performance indicators are introduced and their performance is shown using practical examples.

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