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Some Perspectives to Define and Model Reliability Using Fuzzy Sets

Summary: This article proposes a new framework to model the reliability for a component or system using the theory and methods of fuzzy sets. The authors propose to use a substitute or performance variable that is well understood by the customer to fuzzify the states of a component or system. The authors show that the proposed measures based on fuzzy thinking are more meaningful and customer-centric for reliability-related decision-making processes. The proposed fuzzy reliability measures are a generalization for the traditional binary and multistate reliability and can be used as an alternative for modeling the continuous-state behavior for systems that degrade over time.

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  • Topics: Reliability
  • Keywords: Reliability, Network reliability, Reliability theory, Analytical modeling, Customer focus, Degradation
  • Author: Li, Zhaojun; Kapur, Kailash C.
  • Journal: Quality Engineering