Getting to Normal

Description: Statistical process control (SPC) is a fundamental quality management technique. It is a mandatory tool in the automotive industry, part of all Six Sigma courses and required knowledge for many ASQ certifications. Many people take SPC courses.…


Keywords: Statistical process control (SPC),Quality tools,Quality management

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The point is management can use the SPC Chart approach to better interpret the results of their measurements of KPIs
--Michael Mercer, 02-23-2020


I disagree with your first example, "The operators are not involved in the actual technical process control, and SPC will not add business value to this process." Or else I don't understand what you are saying. There will still be variation between machines and between operators. SPC would show this variation and show which machines are not calibrated correctly.

Your main point seems to be that the small sample sizes aren't suitable for modern processes. But your claim is to eliminate using SPC when it would make more sense to increase the sample sizes. If the processes are highly automated, that means there are people able to do the sampling and testing because they are not busy running the equipment.

You claim management should be trained in SPC while at the same time claiming we shouldn't be using SPC. Seems a little catch-22 to me.
--John E, 02-12-2020


If I have grasped the author correctly, his main idea is to captivate management by using SPC for organizational problems. But this implies that operators use SPC while managers don't. As far as I know this is not the case throughout the World: if managers do not know and use SPC it will never be working in their organizations. But if they know and use SPC they must know all, the author wrote in his paper.
--Vladimir Shper, 02-08-2020


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