| design boundary | Organization, contribution, concept, authority, horizon, first receiver, and affected Systems. |
| selected structures | Structure kind, constituents, occurrence refs when actual, modal structure or relation claims when proposed, declared use, and known losses. |
| specialization decisions | Boundary, reason, expected gain, burden moved, retained cross-boundary contribution, and open refinement. |
| contribution-relation specifications | Intended direct relation kind or predicate, supplier, receiver, result or preserved condition, applicability, acceptance/use, exception return, scope, horizon, and evidence need; occurrence ref only when independently established. |
| participant corrections | Participants sought, design change made, missing voice, burden or protection limit, and unresolved claim. |
| architecture decision | Selected option, fixed constraints, accepted losses, rejected or retained alternatives, modal or actual status, and decision basis. |
| downstream returns | Position needs, paired product/service questions, realization constraints, specialist results, and missing governors. |
| continuation | Realization observations, evidence windows, and the smallest event that reopens the decision. |