All directories contain a schema that defines:
- Objects that can inhabit the directory
- Attributes that each object must or can contain
The directory checks any new objects you add against the schema to ensure that the objects conform to schema rules.
In addition to the predefined schema that is native to each supported directory, Teradata provides schema extensions that you can load into the directory to link directory users to Teradata Vantage users, external roles, and profiles.
For information on Teradata schema extensions used to define security policy, see Network Security Policy.