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Total Quality Management, 2nd Edition by Poornima M. Charantimath

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7

Six Sigma

The ability to simplify means to eliminate the unnecessary so that the necessary may speak.

Hans Hofmann

Upon completion of this chapter, you will be able to:

  1. Explain Six Sigma
  2. Describe the Six Sigma quality level
  3. Understand the fundamentals of the Six Sigma strategy
  4. Explain the steps in implementing Six Sigma (DMAIC, DMADV and DFSS)
  5. Discuss the Six Sigma training programme

Introduction

Sigma (σ) is a letter in the Greek alphabet used to denote the standard deviation of a process. The term Six Sigma is derived from the field of statistics. Sigma quality level is sometimes used to describe the output of a process. A Six Sigma quality level is said to equate to 3.4 defects per million opportunities. However, the term in practice ...

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