What is the difference between Lean and Six Sigma?
Lean and Six Sigma are two different frameworks that can be used to improve the effectiveness of a given process. Lean is focused on customer value and waste reduction, while Six Sigma focuses on variation reduction and statistical analysis.
Lean | Six Sigma | |
|---|---|---|
Focus is on: | Waste reduction | Variation reduction |
Leads to: | Cycle time reduction | Defect reduction (3.4 DPMO) |
Philosophy/ approach | Five Philosophies of Lean - Identify Value - Map the Value Stream - Create Flow - Pull - Seek Perfection | |
In summary: | Lean looks at the ways to increase the flow. | Six Sigma focuses on achieving consistency |
