The Object Classes page shows the object classes defined in schema.
The left part of the page lists the available object classes.
The right part of the page shows the details of the selected object class:
Details: Shows the OID, names, description and kind of the object class.
MUST Attributes: Shows all MUST attributes, even those inherited from superclasses.
MAY Attributes: Shows all MAY attributes, even those inherited from superclasses.
Superclasses: Shows the object classes this object class is directly derived from (in other words the parents).
Subclasses: Shows the object classes derived from this object class (in other words the children).
Raw Schema Definition: Shows the raw value of the object class definition as returned from server.