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Commercializing Great Products with Design for Six Sigma by David W. Bacon, Randy C. Perry

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Chapter 30. Design of Experiments

When the product/process development team has identified key process input variables (KPIVs) that influence the key output variables (KPOVs) of interest, they should design a sequence of experiments to determine the form of relationship between each KPOV and selected KPIVs. This involves identifying combinations of settings of the controllable KPIVs at which each KPOV will be measured. A plan for conducting such an investigation is called a Design of Experiment (DOE).

Influential KPIVs may include both controlled and uncontrolled (i.e., noise) variables. Attempting to control noise variables is usually a costly, and sometimes impossible, task. A DOE focuses on controllable KPIVs only; the influences of uncontrolled ...

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