UMLAssociation represents an association between elements of a class and elements of another or the same class. The UMLAssociation is transformed to subtypes of OPC UA NonHierarchicalReferences (see Table 7).
Table 7 – Transformation rule of the elements of UMLAssociation
|
ISA-95 |
OPC UA |
Description |
|
UMLRole |
SourceNode, TargetNode |
UMLRole may be transformed into the restrictions of ReferenceType. |
|
UMLCardinality |
N/A |
Standard ModellingRules only affect instance declaration specified by subtypes of Hierarchical References. |
|
UMLAssociation Name |
BrowseName |
A name defined in ISA-95 may be changed. InverseName will be defined. |
Instance Nodes that are referenced by NonHierarchicalReferences are not instantiated when an instance of an ObjectType or VariableType is created.