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After Pacman VS Money, now it's Lean VS Six Sigma

5/19/2015

3 Comments

 
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I am still surprised that the debate between Lean 'purists' experts and Six Sigma 'purists' experts are still happening, even here in the Philippines.


Lately, there has been a great deal of talk around Lean execution for different industries, even starting a Lean certification program.  Some speak of Lean, some of Six Sigma, and some, combination of Lean and Six Sigma.  


While healthy discussions between experts are needed to always stimulate the mind and ideas of process improvement professionals, this 'pre-historic' question about which is better between Lean and Six Sigma has become overused to the point of it being irritating.


So which is better?


Here's my take.  Lean focuses on speed, Six Sigma on eliminating defects and variations.  Lean and Six Sigma are complement each other.  They are a perfect match.


As a process improvement professional, even as a manager in general, you should have the two in your toolbox.  IF your problem is about looooong processing time, use lean tools, techniques and methodology.  IF your problem is about recurring defects or variation of outputs, use DMAIC and Six sigma tools.


IF your answer is ONLY lean, or IF your answer is ONLY Six Sigma, you have a BIG PROBLEM.  If you are a consultant, your clients have a BIG problem that is YOU.


"...if all of you have is a hammer, everything looks like a nail" (Maslow, The Psychology of Science, 1966) 





3 Comments
Segyu Lee
6/15/2015 03:56:27 pm

Reply
Segyu Lee
6/15/2015 04:12:13 pm

Actually if we have enough considerations, then lean six sigma is a just another methodology of six sigma.. and DMAIC is just one of 'roadmap' of six sigma.. As I remember, there are many roadmaps for six sigma. It's choosable by cases. DMAIC is good for present process and it's for optimizing, but if the procee reach to 4.7 sigma then you should rebuild or redesign. So, we need DMAD(O)V. And if we don't have the procee yet, then we need DFSS(design for six sigma).. and it's roadmap is DIDOV..
If I make some mistake from my misunderstanding about this site, please send email to me. Actually I love Six sigma so much. That's why I made comments here, even this is the first entrance to me..

Reply
Antti Lahtinen
9/16/2015 10:16:53 pm

I can't help but wondering how did we ever manage without all these acronymes...

I started this stuff back -92, when we just did what needed to be done to improve profitability and customer experience and used common sense doing it.

We had quite a tool box then. Funnily enough, practially all those tools are now in this american packaging called Lean Six Sigma.

Yes, both are extremely important and complement each others. Just do not believe that is enough, though 8-)

Reply



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    Rex Jayson Tuozo "The Six Sigma Guy"

    Rex is a Six Sigma Trainer and Consultant, theater performer, Suits & Game of Thrones fan, and the author of the 1st Six Sigma book in the Philippines

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