The namedObject structural object class is a placeholder. It is intended for use in entries that have auxiliary object classes, and for which there is no appropriate structural object class.

The Internet-Draft shows the example of a POSIX group entry:

dn: cn=wheel,ou=Groups,dc=padl,dc=com
objectClass: top
objectClass: namedObject
objectClass: posixGroup
cn: wheel
gidNumber: 0
memberUid: root
Names namedObject
Origin draft-howard-namedobject
Superior Classes top
Optional Attributes cn
Schema File 00-core.ldif
Class Type STRUCTURAL: for structural specification of the DIT. Entries have only one structural object class superclass chain.
Required Attributes objectClass
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