The OPC UA AddressSpace supports Information Models. This support is provided through:

• Node References that allow Objects in the AddressSpace to be related to each other.
• ObjectType Nodes that provide semantic information for real Objects (type definitions).
• ObjectType Nodes to support subclassing of type definitions.
• Data type definitions exposed in the AddressSpace that allow industry specific data types to be used.
• Industry groups can define how their specific information models are to be represented in Server AddressSpace.