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A Guide to Six Sigma and Process Improvement for Practitioners and Students: Foundations, DMAIC, Tools, Cases, and Certification, Second Edition by David M. Levine, Howard S. Gitlow, Richard Melnyck

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Chapter 10. Dmaic Model: ‘D’ is for Define

What is the Objective of This Chapter?

The objective of this chapter is to take you through the various steps of the Define phase of the Lean Six Sigma DMAIC model so that you can apply them on projects at your organization. We will use a case study to demonstrate how the steps of each phase are executed in real world projects.

Purpose of the Define Phase

Remember, the Lean Six Sigma DMAIC model is based on the scientific method and that it is used to improve a current process, product or service. The easiest way to explain the DMAIC model is to think of it in terms of (Y) (the problematic metric you are trying to improve) is a function of one or more Xs (the steps in the process that are contributing ...

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