This Object is the root of the GlobalDiscoveryServer AddressSpace and it is the target of an Organizes reference from the Objects folder defined in OPC 10000-5. It organizes the information that can be accessed into subfolders. The implementation of a GDS can customize and organize the folders in any manner it desires. For example folders may exist for information models, or for optional services or for various locations in an administrative domain. It is defined in Table 2.

Table 2 – Directory Object Definition

Attribute	Value
BrowseName	Directory
Namespace	GDS (see 3.3)
TypeDefinition	DirectoryType defined in 6.3.3.
References	NodeClass	BrowseName	DataType	TypeDefinition	Modelling Rule