Definition

Enterprise Identity Mapping (EIM)

Enterprise Identity Mapping (EIM) is an open architecture from IBM for helping an enterprise manage the multiple user registries and identities that enable a computer user to access multiple applications with a single sign-on. The architecture provides for a server that client systems can access so that the users can access multiple applications, even those that are distributed in a network. Using EIM, authentication (which can use Kerberos or other authentication methods) and authorization processes can be located in separate places in a network. EIM is intended primarily for one-to-many mappings (single user, multiple identities). It can also support many-to-one mappings (multiple users, single identity), although this practice is not recommended. EIM can be integrated with directory services such as Active Directory and Novell Directory Services.

This was last updated in July 2006
Posted by: Margaret Rouse

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