UPDMRTF — Why does a user need to build an SOV-3?

Why does a user need to build an SOV-3? The relationship from services to capabilities should be transitive. Once a user establishes traceability from operational activity to capability and from ServiceFunction to Operational Activity, then there is already a trace from owning service (service that owns that ServiceFunction) to a capability and SOV should b au-populated. Further, a service(Interface) should map to a node and not to an OperationalActivity or to SystemFunction. This change is to be discussed with respective requirements representatives.