WorkOrderAssignment missing
https://sourceforge.net/p/plcslib/plcslib-infrastructure/164
WorkRequest has Id and requestId as identifiers - delete requestId
https://sourceforge.net/p/plcslib/plcslib-infrastructure/165
ActivityHappeningRelationship relating/related wrong way round
https://sourceforge.net/p/plcslib/plcslib-infrastructure/169
StringValue not sure about valueComponent
https://sourceforge.net/p/plcslib/plcslib-infrastructure/170
WorkRequestMethodAssignment / ActivityMethodAssignment
https://sourceforge.net/p/plcslib/plcslib-infrastructure/171
Create AssignmentObjectRelationship
https://sourceforge.net/p/plcslib/plcslib-infrastructure/174
TimeInterval no Id
https://sourceforge.net/p/plcslib/plcslib-infrastructure/179
Cardinality on Assignment Objects
https://sourceforge.net/p/plcslib/plcslib-infrastructure/180
Inverse to SubsetMember from ExternalOwlClass to support OCL constraints
