Re: on Deming's application of 85-15 to 97-3 %

[lifemap@ix.netcom.com]

Re: 80/20 etc.

My response of last month may have been missed (or ignored). I wrote that Deming's percentages for 
management vs employee contributions to problems ranged from 85-15 to 97-3 to 102% for management. 
In other words, Dr, Deming was saying, let's not take the quantification of the issue too 
literally; we know where the problem lies.

I think that Deming's source of this idea, if it is Juran, is NOT Juran's Pareto work, but his 
analysis of MANAGEMENT VS OPERATOR CONTROLLABLE DEFECTS. For example, see Juran and Gryna, Quality 
Planning and Analysis, pages 106-107 and other discussions in the book. See Juran's Quality 
Control Handbook, forth edition, especially page 17.5, Table 17.2.  

Ed Baker
lifemap@ix.netcom.com
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