Network, Computer and Programming Resources
Win2k - Active Directory schema
A description of the object classes and attributes stored in Active Directory directory service. For each object class, the schema defines the attributes an object class must have, the additional attributes it may have, and the object class that can be its parent. The Active Directory schema can be updated dynamically by creating or modifying the schema objects stored in Active Directory. Like every object in Active Directory, schema objects have an access control list (ACL), so only authorized users may alter the schema.