The schema is the component of the Active Directory directory service that defines all the objects and attributes that the directory service uses to store data. You can combine some objects in the schema to create more-complex definitions if objects of greater complexity are required. You can also add new definitions to the schema to support new types of objects in the directory.

In this subject

• What Is the Active Directory Schema?
  
  
• How the Active Directory Schema Works
  
  
• Active Directory Schema Tools and Settings