!!! Overview
An [{$pagename}] [object class|Definition -- Object Class] is one that does not define the core type of an entry, but defines additional characteristics of that entry.  

An [LDAP Entry] can contain zero or more [{$pagename}] object classes.  

The set of [{$pagename}] classes allowed for use in an entry may be controlled by a [DIT Content Rule] associated with that entry's [structural class|Structural ObjectClass].

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]