Definition of Meta Directory
Some organizations deploy a Meta Directory to synchronize user and user attributes between multiple user directories.
A Meta Directory program is software that compares users and user attributes as defined on multiple systems, and automatically propagates changes made on an authoritative system to other systems. For example, if a user's HR record is updated with a new home telephone number, a meta directory might update the corporate e-mail system and LDAP directory with the same new information.
