Lean Six Sigma
Lean Six Sigma is a synergized managerial concept of Lean and Six Sigma. Lean traditionally focuses on the elimination of the eight kinds of waste/Muda classified as defects, over-production, waiting, non-utilized talent, transportation, inventory, motion, and extra-processing. Six Sigma seeks to improve the quality of process outputs by identifying and removing the causes of defects (errors) and minimizing variability in (manufacturing and business) processes. Synergistically, Lean aims to achieve continuous flow by tightening the linkages between process steps while Six Sigma focuses on reducing process variation (in all its forms) for the process steps thereby enabling a tightening of those linkages. In short, Lean exposes sources of process variation and Six Sigma aims to reduce that variation enabling a virtuous cycle of iterative improvements towards the goal of continuous flow.
Lean Six Sigma uses the DMAIC phases similar to that of Six Sigma. IASSC does not provide Lean Six Sigma related training, mentoring, coaching or consulting services. Lean Six Sigma projects comprise aspects of Lean’s waste elimination and the Six Sigma focus on reducing defects, based on critical to quality characteristics. The DMAIC toolkit of Lean Six Sigma comprises all the Lean and Six Sigma tools. Lean Six Sigma unites tools and techniques from Lean and Six Sigma methodologies to produce real results. The belt personnel is designated as white belts, yellow belts, green belts, black belts and master black belts, similar to Judo.