User has several different concepts within several different contexts.

User is often the Customer or end-user.

Personal Entity#

Personal Entity is often referred to as a User

OAuth 2.0 Resource Owner#

Within OAuth 2.0 User is a Resource Owner

Microsoft Active Directory ObjectClass Definition#

The ObjectClass Type is defined as:

LDAP eDirectory Attribute Definition#

LDAP eDirectory the AttributeTypes is defined as:

LDAP eDirectory ObjectClass Definition#

The ObjectClass is defined as:

More Information#

There might be more information for this subject on one of the following: