The HasModellingRule ReferenceType is a concrete ReferenceType and can be used directly. It is a subtype of NonHierarchicalReferences.
The semantic of this ReferenceType is to bind the ModellingRule to an Object, Variable or Method. The ModellingRule mechanisms are described in 6.4.4.
The SourceNode of this ReferenceType shall be an Object, Variable or Method. The TargetNode shall be an Object of the ObjectType “ModellingRule” or one of its subtypes.
Each Node shall be the SourceNode of at most one HasModellingRule Reference.