April 15, 201214 yr Both Lean and Six Sigma are business process improvement methodologies. They have a slightly different approach to meet their goals. Some differences in their practical application: Six Sigma: Generally the approach is to train about 25% of the organization on statistical problem solving tools and ask them to fix larger problems with unknown root causes or solutions within the companies. Lean: Train 100% of the workforce on tools such as 5S, Kaizen, Non Value Add analysis etc and create a culture of small improvements every month by large number of people in the organization. For process improvement expertise, both skill sets are unavoidable.
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