!!! Overview
[{$pagename}] ([RFC 4512]) As [X.501] states:

The purpose of the Directory is to hold, and provide access to, information about [objects|ObjectClasses] of interest (objects) in some 'world'.  An object can be anything which is identifiable (can be named).

An [objectClass] is an identified family of objects, or conceivable objects, which share certain characteristics.  Every [object|objectClass] belongs to at least one [class|objectClass].  An object []class|objectClass] may be a subclass of other [object classes|objectClass], in which case the members of the former class, the subclass, are also considered to be members of the latter classes, the superclasses.  There may be subclasses of subclasses, etc., to an arbitrary depth.

A [directory entry|LDAP Entry], a named collection of information, is the basic unit of information held in the Directory.  There are multiple kinds of [directory entries|LDAP Entry].

An object entry represents a particular object.  An alias entry provides alternative naming.  A subentry holds administrative and/or operational information.

The set of [entries|LDAP Entry] representing the [Directory Information Base] are organized hierarchically in a tree structure known as the [Directory Information Tree] ([DIT]).

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