1.3.1.4.5 Gate
Gates are connected through Messages. A Gate is actually a representative of an OccurrenceSpecification that is not in the same scope as the Gate. Gates play different roles: we have formal gates on Interactions, and actual gates on InteractionUses.
InteractionFragmentGateOccurrenceSpecificationMessageEnd
Association
Description
Actual : Gate [0..*]
If the gate belongs to an InteractionUse, then it is connected to a formal gate belonging to the referred interaction.
Formal : Gate [0..1]
OwnerInteraction : Interaction [0..1]
OwnerUse : InteractionUse [0..1]
The actual gates of the InteractionUse.
OwnerFragment : CombinedFragment [0..1]
Not supported in sequence diagrams: Specifies the gates that form the interface between this CombinedFragment and its surroundings.