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Lean Horizons Consulting

Lean Enterprise Transformation Since 2001

You are here: Home / Lean / What Should we do First, Lean or Six Sigma?

March 17, 2011 By Mark DeLuzio

What Should we do First, Lean or Six Sigma?

Mark DeLuzioI continue to be asked: “what should we do first, Lean or Six Sigma?” Here is our position on this subject:

  1. Six Sigma is a problem solving tool. Problem Solving is a subset of Lean (which is comprised of many tools), and it makes no sense to build a culture around a tool like Six Sigma. Lean culture should be developed around Lean principles, and never around a tool.
  2. Many companies try to solve all problems using the Six Sigma process. This is inappropriate. When the only tool you have in your tool box is a hammer, all of your problems look like nails.
  3. We believe that a large majority of all problems can be solved using basic problem solving methodologies. There is no need for an elaborate approach like Six Sigma for most of an organization’s problems.
  4. The Six Sigma methodology is usually a long, drawn-out process, where projects can take 6 to 9 months. Lean is much quicker in terms of results. Lean zealots have the view of not letting “perfect” get in the way of “better”.
  5. Lean rests on the input of the all associates within an organization. Due to the complexity of Six Sigma, not all associates can meaningfully participate in the process. I have seen Six Sigma “cliques” form in an organization, which is rather elitist and dysfunctional.
  6. By starting with Six Sigma first, there is a danger of improving a process that should not exist in the first place. Lean is all about process improvement, creating flow, etc. and many times help identify processes that are non-value adding and should be eliminated. Why improve a process that should not exist in the first place?

So, where does this lead us? I firmly believe that Six Sigma works nicely within a Lean transformation, but the key is to use the right tool at the right time. I would be interested on your opinion, your successes and your challenges.

 

 

Filed Under: Lean Tagged With: problem solving, six sigma, success, tools

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