This is the descriptive attribute that is used to relate the congruence between two concepts. The concept that is represented in the party perspective, via the Status_ID field is [this field, i.e. <,>,=] the concept represented in Concept_ID field. As normally used, (no Longer Valid Concept) [convergence] (Valid Concept). For example, if a concept is split, the convergence would be 'greater than' (The old concept is 'greater than' the new concept).