What is Schema Adapation?

In a directory server, the directory schema defines the rules for which object classes and attributes that can be present, in addition to the relationship between them. The LDAP clients are normally not able to change the set of attributes they include in their requests. Using the schema mapping abilities of the Virtual Directory makes it possible to map between the attribute names (columns) in the data source column and attributes names used in the LDAP requests. Even more advanced schema modifications are easily configured. It is possible to extend the attribute set by constructing attributes from existing attributes and even from external data sources.