Support for information models – OPC Unified Architecture

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.