Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/60579
Title: A generalised fuzzy least-squares regression approach to modelling relationships in QFD
Authors: Kwong, CK 
Chen, Y
Chan, KY
Luo, X
Keywords: Quality function deployment
Fuzzy least-squares regression
Relationship modelling
Fuzzy techniques
Customer satisfaction
Functional modelling
Issue Date: 2010
Publisher: Taylor & Francis
Source: Journal of engineering design, 2010, v. 21, no. 5, p. 601-613 How to cite?
Journal: Journal of engineering design 
Abstract: In quality function deployment (QFD), information regarding relationships between customer requirements and engineering specifications, and among various engineering specifications, is commonly both qualitative and quantitative. Therefore, modelling the relationships in QFD always involves both fuzziness and randomness. However, previous research only addressed fuzziness and randomness independently of one another. To take both the fuzziness and randomness into account while modelling the relationships in QFD, fuzzy least-squares regression (FLSR) could be considered. However, the existing FLSR is only limited to developing models based on fuzzy type observed data and modelling relationships in QFD often involves both crisp type and fuzzy type observed data. In this article, a generalised FLSR approach to modelling relationships in QFD is described that can be used to develop models of the relationships based on fuzzy observations and/or crisp observations. A case study of a packing machine design is used in this article to illustrate the proposed approach.
URI: http://hdl.handle.net/10397/60579
ISSN: 0954-4828 (print)
1466-1837 (online)
DOI: 10.1080/09544820802563234
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