Installing and configuring the reference configuration components creates a basic LDAP schema, as follows:
When you install Directory Server, the basic schema is created.
When you install Access Manager, the basic schema is extended to support Access Manager. (This is sometimes referred to as schema 2 in Access Manager's legacy mode.)
After you deploy and test your reference configuration, and you begin to add custom content and service channels to your portal, you normally need to extend the LDAP schema further. Depending on the content and services your portal service will provide, you will probably need to add object classes and attributes to the schema. For more information about managing schema to support custom content, see Chapter 11, Directory Server Schema, in Sun Java System Directory Server Enterprise Edition 6.0 Administration Guide.