OPC UA defines two attributes containing naming information about an OPC UA Node, the BrowseName and the DisplayName.

Recommendations for DisplayName will be given in a later version of this document.

The BrowseName is of DataType QualifiedName, containing a NamespaceIndex and a String. Unless the BrowseName is defined in some other Namespace or there is some specific handling for the BrowseName, the Namespace for the BrowseName should be the one the Node is defined in (i.e. the same Namespace as the NodeId). Nodes defined in a Companion Specification should use the Namespace of the Companion Specification for their NodeIds and BrowseNames.

For the string-part the following naming conventions apply: