Control Charts and Adjusting a Process

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Thanks so much for reading our publication. We hope you find it informative and useful. Happy charting and may the data always support your position.


Dr. Bill McNeese
BPI Consulting, LLC

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Comments (2)

  • AustinDecember 8, 2021 Reply

    HiI have some opinion regarding the paragraph of "BUT THE RESULT IS OUT OF SPEC", the conclusion might not be suitable for automotive industry as it is asked if the process capability is less than 1.33 or even worse, let's say less then 1 that bad parts might be produced already, the organzation should do 100% sorting to ensure not bad parts are delivered out, follow by a plan how to improve the process till the process can really be improved at PPAP stage, so the conclusion of doing nothing would depend on industry and customer sensetivity about bad parts

    • billDecember 10, 2021 Reply

      That may well be what a customer wants you to do, but the truth is that there is no significant different between a part in spec and out of spec if the process is in control.  The customer has already received parts that are out of spec and has used them most likely.

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