Metric design


Metric Design studies the influence of noise and cost on the quality of the product designed. It establishes that the best product is the one with the lowest cost and the most predictable performance. This clashes with the ideas of some designers, who believe that their job is to design by optimizing the product’s features, appearance, reliability, etc., and that the production engineer’s task is to design a process capable of manufacturing that product (Taguchi, Elsayed and Hsiang 1989). In fact, both designs are intimately related (concurrent engineering), which is why it is not only important to determine the optimum value of the product’s parameters, but also its tolerances. Obviously, not all conceptual designs ...

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