R989 - modelint/shlaer-mellor-metamodel GitHub Wiki
Multiple Create Action is a Multiple Delegated Create Action or Multiple Local Create Action
Just as with single instances, a Lineage may be created by delegation (asynchronously) or locally (synchronously).
<subclass>.(Action, Activity, Domain) -> Multiple Create Action.(Action, Activity, Domain)
Multiple Create Action.(Action, Activity, Domain) is the union of the <subclass>.(Action, Activity, Domain) values