ADM.2:4.2 - Recover the relation needed for this use
State the relation in ordinary language with its participants: “Mara holds the appointment covered by the archive eligibility rule”, “the archive custodian may grant read access to collection R”, or “Lee may configure the access that the custodian has granted”.
Recover the applicable source and conditions. Ask what establishes the relation, what action or resource it covers, when it applies, and what relevant restriction or ending condition can change the present use. A supplied current assignment can answer this inquiry directly. OCE.6 provides assignment results for an organizational-change question; reuse one only for the participants and responsibilities it actually establishes.
A.6.REL governs the underlying distinction between a relation obtaining and someone asserting or recording that it obtains. Its ordinary branch permits a readable relation statement. Add an occurrence identifier or a full relation model only when later work needs to distinguish another occurrence of that relation, including a later episode with the same participants.