event-occurrence-usage-reference
Available in: SysML
This checks that event occurrences reference only other occurrences.
Specification
If an
EventOccurrenceUsagehas anowned_reference_subsetting, then thefeature_targetof thereferenced_featuremust be anOccurrenceUsage.
Example
attribute p;
event p; // error
Instead, reference an occurrence:
occurrence p;
event p; // ok