Re: Semantics and 6 sigma

[GrantBlair@aol.com]

In a message dated 10/5/2000 8:31:55 AM Eastern Daylight Time, 
jsdwd@samart.co.th writes:

<< The statement above that until special causes are removed 'any attempt to
reduce variation ...will only result in making it worse.' is simply not
true. >>

Here is the WHOLE sentence from my post:
"The purpose of a control chart is to seperate common cause from special
cause variation. Until this is done, any attempt to reduce variation in a 
process will only result in making it worse."

Here is what I also said in a earlier post responding to you:

"Control charts define WHEN to take action on the process. In their absence,
variation will increase:
First, by taking action on a process when it is not required.
Secondly, by failing to take action on a process when it is required."

Your response to that  was: 
>>>>"It is not necessarily true that variation will increase in the absence of
control charts.  It will depend on the process."<<<<

In this last post, you also said,
>>>A careful reading of "Statistical Method from the Viewpoint of Quality
Control" would help, I think in attaining such an understanding.>>>

Read the WHOLE book..got it sitting here in front of me.
Seen Don Wheeler's WHOLE video.
No longer confused about how you and I could come to such  different 
conclusions.

Grantblair@aol.com
Ninety Six SC

[Moderator's Note:  I hope that both 'sides' of this 6 sigma/SPC discussion
will remain professional and not allow frustration to make it personal. ]