E.15:5.5 - A real architecture choice
A pattern could model a new distinction as a local value, a direct relation, or a selected structure, and each choice changes downstream use. No single repair is yet selected. The author records the alternatives in the DRR, uses subject-specific criteria and E.21/E.22 qualities, and may use C.18/C.19 to broaden the candidate set. The comparison stops when the intended use supports one non-dominated architecture; search machinery is not retained as a universal authoring obligation.