When I first heard the term Lean Six Sigma, I wondered what Lean added to Six Sigma. I found that the answer is speed. The first principle of Lean Six Sigma is: Delight your customers with speed and quality. The second principle says: Improve process flow and speed. Lean Six Sigma emphasizes that speed is directly tied to excellence.
- Just-in-time (flow)
- Jidoka (built-in quality)