John, My point in mentioning mechanism and scope is that if a mechanism is incapable of scope, it's deployment may be "scoped", and that has some consequences. If a mechanism is capable of scope, it's deployment may not be scoped, though its policy instantiations may be.
I'm on a list with about a half-dozen other parties, and for the life of me, I can't see a common intent to obtain technical cooperation and consistency on that list. Enlarging the stage to include the DNSO as a policy making body, and assuming that a single guideline will arise is simply contrary to my understanding of some of "our customers". I'm concerned by a presumption of universal applicability. Persuasion is the better authority. Eric P.S. This list could use a meta- list.
