
Metamodel user guide
An OccurrenceSpecification is the basic semantic unit of Interactions. The sequences of occurrences specified by them are the meanings of Interactions.
OccurrenceSpecifications are ordered along a Lifeline.

Association | Description |
---|---|
ToAfter : GeneralOrdering [0..*] | |
ToBefore : GeneralOrdering [0..*] | The OccurrenceSpecification referred comes after the OccurrenceSpecification referred by before. |