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Standards and product evidence

The model uses standards and public product behaviour as evidence. None is copied wholesale, and none is allowed to dictate aggregate boundaries without a domain reason.

  • USDM is the principal alignment target for study-design semantics, not a mandatory internal class hierarchy.
  • ODM is an exchange model; exchange cardinality does not automatically define an aggregate boundary.
  • The TMF Reference Model classifies content; EssentialRecord adds record-instance behaviour and evidence decisions.