An [AttributeType] attribute usage defines the contexts in which it may be used.  There are four types of attribute usage:

* [userApplications] -- Is a [user attributes|UserAttribute] and should be used for all attribute types that are intended for use in holding user-defined [data].
* [directoryOperation] -- Is a [Operational Attributes] and should be used for attribute types that are used for behind-the-scenes processing within the server.
* [distributedOperation] -- Is a [Operational Attributes] and should be used for attribute types that store operational data that need to be distributed (i.e., [replicated|Replication]) throughout the directory environment.
* [dSAOperation] -- Is a [Operational Attributes] and should be used for attribute types that store operational data that should be stored only in one [server|DSA] and should not be replicated throughout the directory environment.

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[{ReferringPagesPlugin before='*' after='\n' }]