The IdentityCriteriaType UserName requires a local verification of user name and password to be able to assign the corresponding role. Such users can be managed by the operating sytem or by the OPC UA Server.
The chapter defines a standard API for the management of a user list in the OPC UA Server.
Figure 2 depicts the ObjectTypes, Objects and their components used to represent the user management. The ServerConfiguration Object is defined in OPC 10000-12.
