OCE.4:10 - Rationale

An organization contributes through actual Systems, Work, and direct relation occurrences. Design-time specifications preserve why a proposed boundary exists without asserting that the relation already obtains, so later evidence can show whether the intended architecture was realized.

Several structures are expected. The activity arrangement, decision representation, legal entities, information use, access, and service provision can overlap without becoming one structure. Their non-isomorphism can expose a design risk rather than a modeling defect.