'Profile' upgraded to a RequestBase element

Hi all, as agreed on the call I've moved Profile and AppliedProfile from OptionalIn/Output to Request- / ResponseBase.
See schema and current core draft attached.
What about the the Policy element?
Is there a need to move it, too?
Another topic: I tried to separate structural description and processing in the new core document.
The resulting processing part is quite tricky to read and Word spoils my efforts to arrange the processing steps in an appealing way.
So I thought about using BPMN in the core.
Any views on this?
Greetings, Andreas

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