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**Fuzzy linear programming models for NPD using a four-phase QFD activity process based on the means-end chain concept.**
*(English)*
Zbl 1175.90435

Summary: Quality function deployment (QFD) is a customer-driven approach in processing new product development (NPD) to maximize customer satisfaction. Determining the fulfillment levels of the “hows”, including design requirements (DRs), part characteristics (PCs), process parameters (PPs) and production requirements (PRs), is an important decision problem during the four-phase QFD activity process for new product development. Unlike previous studies, which have only focused on determining DRs, this paper considers the close link between the four phases using the means-end chain (MEC) concept to build up a set of fuzzy linear programming models to determine the contribution levels of each “how” for customer satisfaction. In addition, to tackle the risk problem in NPD processes, this paper incorporates risk analysis, which is treated as the constraint in the models, into the QFD process. To deal with the vague nature of product development processes, fuzzy approaches are used for both QFD and risk analysis. A numerical example is used to demonstrate the applicability of the proposed model.

### MSC:

90C70 | Fuzzy and other nonstochastic uncertainty mathematical programming |

90C05 | Linear programming |

### Keywords:

fuzzy sets; fuzzy linear programming; quality function deployment (QFD); means-end chain (MEC); risk analysis
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\textit{L.-H. Chen} and \textit{W.-C. Ko}, Eur. J. Oper. Res. 201, No. 2, 619--632 (2010; Zbl 1175.90435)

Full Text:
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### References:

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