Recently there have been a lot of discussions about which is best – Lean, Six Sigma or Theory of Constraints? Is Lean Six Sigma better than Lean or Six Sigma?
In this brief post, I will try to view this question from my viewpoint. There is a saying based on the 9th century Zen Buddhist teacher Qingyuan Weixin which I have paraphrased loosely below;
“At first I saw the mountain as a mountain. Then when I learned more and more, I realized that the mountain is not a mountain. But now that I have learned it even more, I see that the mountain is a mountain again.”
If you change the term mountain with “Lean” and “a set of tools”, we can paraphrase it as follows;
“At first I saw Lean as a set of tools. Then I learned more and more, I realized that Lean is not a set…
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