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"Statistical Quality Control" Versus "Statistical Process Control"
I noticed that a search for "Statistical Quality Control" redirects users to SPC instead. I found this quite concerning considering that SQC is recognised as a means of quality appraisal (used to help increase the efficiency of inspection), as opposed to SPC which is used to prevent defects. I can only suggest that SQC not redirect here, but rather to something more relevant such as Lot quality assurance sampling or Quality control. Explanation here.
Application of SPC
New section removed as it is not appropriate here. It is perfectly possible to use a Plan-Do-Check-Act as part of a quality system that also uses SPC, but it is also perfectly intellectually coherent to use SPC without a PDCA cycle. This article should cover what SPC is, not get diverted into one of the many systems in which it can be incorporated. For instance, "Statistical Process control- a practical guide" John S Oakland 1986 offers a 'basic but comprehensive' guide without a single mention of PDCA.
