3.1. Introduction3.2. First Wave: As Is to TQM3.3. Second Wave: TQM to Lean Six Sigma3.4. Third Wave: Lean Six Sigma to FIT SIGMA and Green Six Sigma3.5. More About Six Sigma3.6. What Is Six Sigma?3.7. The Structured Approach of Six Sigma3.8. Certification of Black Belts and Master Black Belts3.9. What Is Lean Six Sigma?3.10. More on Lean Six Sigma3.11. Why FIT SIGMA?3.12. What Is Green Six Sigma?3.13. Summary