BACM — Review uses of "owns" and "aggregates" for consistency

The "owns" association denotes strict composition at the model instance level. Business architecture methodology disallows non-strict composition for capabilities and value stream stages and value streams, but makes no statement about other cases. Business architecture methodology also disallows specialization of capabilities, value stream stages and value streams. The metamodel needs a "does it make sense" review to determine if "owns", "agggregates" and "generalizes" are properly expressed in the model.