SYSML2_ — Missing semantic constraints related to features of Part

In the Systems Library model Parts, the base part definition Part is declared to have the features ownedPorts, ownedActions and ownedStates. These features are described in 8.4.7 Parts Semantics, noting that the are covered further in 8.4.8 Ports Semantics, 8.4.12 Actions Semantics and 8.4.13 States Semantics, respectively. More specifically, 8.4.8.2 Port Usages, 8.4.12.2 Action Usages and 8.4.13.2 State Usages state that the semantic constraints checkPortUsageOwnedPortSpecialization, checkActionUsageOwnedActionSpecialization and checkStateUsageOwnedStateSpecialization determine the required specialization of the relevant Part features. However, of these, checkActionUsageOwnedActionSpecialization is defined in the abstract syntax, but the other two are not.