E.17.1:15.4 - Cross-family description relation positions
A serious project may use one materialized local TEVB instance for its design family, another exact local governance family for program oversight, and another exact local publication-oriented family for publication faces and forms. E.17.1 keeps these relation positions reviewable by preserving which exact catalogue and declaration each viewpoint came from and by preventing a final publication face or form from masquerading as the catalogue itself.