| Method structure | Identified Methods and direct composition, specialization, family, participation, or other selected Method relations with stated truth status. |
| Work structure | Admitted or intended Work and direct parthood, overlap, order, result-use, or transformation relations. Work order does not by itself establish Method composition. |
| allocation structure | Responsibility, authority, capability demand, provider dependence, shared capacity, and burden distribution relevant to the alternatives. |
| subject/support structure | Project Systems, enabling Systems, resources, access, provider, and support relations whose configuration changes the result. |
| description structure | Epistemes, views, schema correspondences, version relations, and losses used by the decision. Description order is not Work order. |
| cultural relation | Recognition, transmission, selection, retention, or loss of a Method variant. A chosen project option is not cultural continuation. |
| simultaneous multigrain contribution | Work at several grains is performed during overlapping intervals. It can include constituent and encompassing Work, the same Work enacting several Methods, or separate Work that only overlaps. Determine the relation; overlap alone neither establishes nor excludes Method composition. |
| genuine first–then condition | One direct Work, result-use, transformation, evidence, configuration, or authority relation makes a later occurrence or decision depend on an earlier result or condition. |
| architecture alternative | A possible-future synthesis whose named relations differ materially. Until realized or independently shown to obtain, it remains proposed. |