A uniquely identified row within the snapshot view of a reference set.
- Different versions of a reference set member may share the same identifier ( id) but have different effectiveTimes. This allows a reference set member to be modified or made inactive (i.e. removed from the active set) at a specified time.
- Each reference set has an identifier (refsetId) and contains one or more reference set members. Each reference set member has its own unique identifier ( id) which allows it to be versioned using the effectiveTime and active fields. All reference set members also contain a referencedComponentId (which refers to a component that is part of the set) and other fields that depend on the type of reference set.