Vision Vs Objective

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    Mike Archer

    Hello.  I am a new BB that will be giving a presentation to some peers on what SS is.  I want to make sure I use terminology correctly.  Would it be correct to say that SS strives to reach 3.4 ppm in every process?  Because that is probably not attainable.  Is it okay to say that a vision is not necessarily attainable but an objective should be?



    Thanks for your question.  I’m afraid, unfortunately, it may open an old can of worms on the Discussion Forum here.
    In my experience, the best I have ever seen claimed for a real business process is 5.4 sigma. But, please don’t get caught up in the numbers. There is a lot of controversy about sigma levels, etc. — if you concentrate on the numbers, you can lose track of what is really important.
    Instead of thinking about the strict numeric definition of “six sigma”, think about it instead as a set of tools and methods that, when applied intelligently,  help us in quality & productivity improvement efforts.
    … hope this is helpful …
    Best regards,



    even though there’s a lot of heated debate, most of the literature says that six sigma is four “things”: (1) a metric (with a goal) (2) a methodology (DMAIC/DFSS/Lean etc.), (3) an organizational structure (champion, mbb, bb, gb, yb etc.), (4) a management philosophy that is grounded in what is now put under the umbrella of operations excellence.
    rather than vision, use the term goal. vision belongs to strategy, and six sigma is generally thought of as supporting an organization’s strategy/vision/mission. all of this is of course open to debate as six sigma is evolving and different schools of thought look at it differently.


    Heebeegeebee BB

    Think of 3.4 DPMO/6S  as a horizon goal…you strive towards it.   You may not reach it, but success is in the trending towards perfection.



    If take out the six sigma metric from six sigma, it’s no longer “six sigma”.  The “set of tools and methods that, when applied intelligently,  help us in quality & productivity improvement efforts” is just TQM
    This article gives the whole sad story of the 3.4 dpmo
    What on earth is “5.4 sigma” supposed to mean … such numbers are meaningless.

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