The BrowseName is a QualifiedName with a NamespaceIndex and a Name. For example, the BrowseName of the engineering units property is “0:EngineeringUnits”, where 0 is the NamespaceIndex and EngineeringUnits the Name. The NamespaceIndex is defined in a specific context (typically in the NamesapceArray of the OPC UA Server), and the same NamespaceUri might have different NamespaceIndexes in different contexts.