Enterprise Identity Mapping (iSeries)
To manage multiple user registries across the enterprise for iSeries OS/400 we can use Enterprise Identity Mapping. EIM maps and associates persons or entities to their appropriate user identities in various registries throughout the enterprise. EIM provides API for creating and managing these identity mapping relationships and provides APIs that applications use to query this information. In addition, OS/400 uses EIM and Kerberos capabilities to provide a single sign-on environment.iSeries Navigator, the iSeries graphical user interface, provides wizards to configure and manage EIM. In addition, administrators can manage EIM relationships for user profiles through iSeries Navigator.
Related:
Single sign-on for authentication using LTPA cookies Configure Enterprise Identity Mapping Enterprise Identity Mapping concepts