PDME — The Part - Document relationship

Summary: Problem: The DocumentRevisionRelationship appears to be a general-purpose
mechanism for relating Documents to Parts, in that it is many-to-many.
And yet it specifically relates Part Revisions (PRCL) to Document
Revisions rather than Document Masters. It seems that two ideas have
been mixed here:
a) the relationship that binds a definitive Document to the Part,
such that each Revision of the document describes a Revision of the
part, e.g. the part geometry model; and
b) a general-purpose relationship that attaches arbitrary
Documents to one or more Parts, such as analysis reports, Issue
documents, design recommendations, etc.