Annex B (informative) OPC UA Meta Model in UML

B.3 Meta Model

B.3.4 Attributes

Attributes are shown in Figure B.7.
Figure B.7 – Attributes
There may be more Attributes defined in other parts of this series of standards.
Attributes used for references, which have a NodeId as DataType, are not shown in this diagram but are shown as stereotyped associations in the other diagrams.