Re: The aim is to reduce variation

[Kromkowski@aol.com]

In a message dated 09/04/00 11:12:00 PM Pacific Daylight Time, 
From: "John McConnell" <wysowl@msn.com.au, in a well taken post noted that, 
in part, that:
  
>   ...
> Those of you who attended Dr. Deming's seminars will recall him pausing
> occasionally as he discussed control charts, single source supply, the
> Nelson Funnel Experiment and a host of other issues to remind his audience
> that the AIM was to reduce variation.   ........
>  It does not matter how many control charts are prepared, nor how 
technically
>  well they are prepared, if the AIM is not to reduce variation, and if
> management are not leading the organization on a crusade to conquer
> variation, lots of pretty charts will not help much.

This was a good post.  I'd add:

And how do control charts aid the aim of reducing variation?

Requisite action for reducing variation is different depending on the type of 
variation being reduced.  The control charting is a simple but economically 
powerful tool to help us distinguish between the two types of variation 
(common cause/systemic variation vs. special cause/assignable variation).

John David Kromkowski
Attorney at Law
6600 York Road - Suite 108
Baltimore, Maryland   21212-2028

Kromkowski@aol.comTelephone:  (410) 377-6248Facsimile:  (410) 372-0624
=========================================================================