Can anyone help me about identifying the differences between Shainin RedX Methodologies and Six Sigma ?
The samples in Six Sigma DMAIC must be statistically relevant or stable. This almost always a large sample size. The conclusion from this data are driven by the statistics and not the engineering or physics of function.
The Shainin FACTUAL requires contrast. sometimes with only one part WOW and the design intent BOB. This is based on the singular function it does not perform. The simplification of the statistics allows for a 95% confidence with small sample sizes in confirmation. The logic is driven by the engineering and physics this actually makes the problem easier.
Man! You really took a big hit of the Shanin koolaid, didn’t you?
You don’t have a clue what you are talking about. All of Shainin’s techniques are statistically valid and require the same size sample as you would with SS given the same assumptions.
I think it is you that does not know what your talking about. Shainins techniques leverage the ability to distinguish BOBs and WOWs with as little as 2 samples, those who accomplish the most with the least, the fastes…win! Again start with two parts: BOB and WOW rather than a larger sample size which could be wasteful. If you fail to get diserable feedback with those two you do not need to continue that route. Most things we attempt to control do not have much influence over what the customer cares about.
Christian,I am not going to get into a pixxing contest with you. You are
passionate about your approach.BOB’s and WOW’s assume huge differences, when you go look up a
sample size needed for differences such as that, you will find the
sample size is 1.I knew Dorian. I also had the opportunity to be part of
conversations where satisticians tried to debunk his methods, but
what the statisicains learned as the conversations progressed is
that Dorian’s methods were well founded in stats, he just did not
tell people his assumptions. What I object to is the way Shainin is taught as a dogma – we are
the way, we are the only way – and the insistance on the strange
lanuage around the method.You work in the automotive world of OEM’s and Tier 1′s – what we
both know about this world is the whole PPAP, process cability,
gauge capabilty, … is a joke. It is not a joke because the ideas are
not right, but because most of what is done there is a lie. Your
method, my method, Taguchi’s methods, Kepner Tregoe, whatever
will work if supported in your environment and they aren’t.That is what is important, why don’t we talk about that with the
leaders who are driving these key industries deeper and deeper
into the ground?
ok, ok, I hear ya and agree. I posted a msg agreeing with you on shainins approach in our 5 other threads. :)
Your point is heard on up front engineering. Too many times do we have to validate the design and process in the assembly plant. I guess that waste keeps us reactive problem solvers in business.
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