Decision-Based Design Framework

With methods for modeling designer preference and customer preference presented in Chaps. 2 and 3, respectively, the decision-based design (DBD) framework and taxonomy is fully developed in this chapter. DBD is an integrated design approach that incorporates the interests from both producer and customers, where the discrete choice analysis (DCA) model for choice modeling, as well as cost models and enterprise objectives, are integrated. To demonstrate the DBD framework, a simple case study for an electric motor design is provided first. Next, an industrial example of vehicle engine design is presented, where techniques for implementing DBD for complex systems are introduced. In particular, determining attribute hierarchies in the DCA model and selecting the form of a DCA utility function using Kano’s method are discussed. The use of the DBD approach to engineering design decision making is illustrated through these examples.

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