A Fuzzy Quality Function Deployment (FQFD) model for deriving optimum targets

Libardo Vicente Vanegas Useche · Ashraf Labib

194 citations0/0 files storedInternational Journal of Production Research

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Quality Function Deployment in Product Design Multi-Criteria Decision Making Product Development and Customization

Abstract

Quality Function Deployment (QFD) is a powerful tool that translates the Voice of the Customer (VoC) into the Engineering Characteristics (ECs), which are those that can be modified in order to meet the desires of the customer. A main objective of QFD is the determination of target values of ECs; however, the conventional QFD aims only empirically at finding these targets, which makes it difficult for the ECs to be optimum. This paper proposes a novel method for determining optimum targets in QFD. Fuzzy numbers are used to represent the imprecise nature of the judgements, and to define more appropriately the relationships between ECs and Customer Attributes (CAs). Constraints such as cost, technical difficulty and market position are considered. An example of a car door is presented to show the application of the method.

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References

1993Fuzzy Set Theory and Its Applications 1988The House of Quality 1998Determination of an optimal set of design requirements using house of quality 1996Framework of a fuzzy quality function deployment system 1998An intelligent hybrid system for customer requirements analysis and product attribute targets determination

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