Dear Jon,
I appreciate yr response. I think I get the “drift” if perhaps not the total (my limitations solely

).
From a purely safety aspect, I think the stages within the continuum you refer are preferably interpreted in a risk / prerequisite context. Terms like Quality Control Points may or may not be safety related, often specifically not IMEX. Personally I think it is safer to simply exclude these terms from a
HACCP-based discussion particularly due to their myriad of interpretations. (1/2 credit to 22000

) An example of a more risk-based concept is (partially) contained within Dutch
HACCP which has (curiously) many similarities to 22000, including a Dutch “OPRP”. One dis-similarity IMO is that it is fairly intelligible.
The practical/theoretical limitations of yr 5D, 6D, (and 12D!) examples are usually well-spelled out in the original texts but I agree that they tend to vanish in the subsequent user-manuals. i hv nothing against "control points" but I don't think they represent an excuse for misusing
HACCP / risk assessment. I blame the propagation of this kind of "slip" on the auditors, it should be fully covered within validation. Eg You must risk assess / accommodate your baseline.
In the current context “best-practice” is maybe equatable to the achievance of a “satisfactorily safe” health result within practical / economic / educational constraints .?? The original
haccp system tried to include slightly “lesser” ccps in the main scheme (ccp1/ccp2 procedure) but it faded away, maybe people didn’t like all the extra paperwork for little perceived benefit (can see it discussed in textbooks). Including the auditors maybe.
IMHO, a serious flaw in OPRP as presented in the standard (ignoring the crazy text) is that there is not a single suggestion as to what level of objectivity is targetted. We all know that even traditional
HACCP is highly subjective but at least the
range of risk uncertainty is discussed. For OPRP, AFAIK. Nada !!
Nonetheless, I respect yr opinion. I hope you don’t hv too many oprps to validate.
Rgds / Charles.C
PS sorry for slang, OT= Off-topic; IMEX = In My experience, CM = control measure, IMHO = in my humble (?) opinion, AFAIK = as far as I know
If you look in very first forum on main page there is a list of popular slang.