The entity specification and characteristic pattern were added to the Security Event ABE to enable the dynamic creation of new types of security events with new attributes.  The predefined event types were all derived from the NetD Data Model, which used multiple existing standards, as well as DoD and industry Security information and event managers, but it current delineation of event types is not expected to be comprehensive.  GB922 Addendum 1R Common Business Entity Definitions – Root Business Entities provides more detailed information on how to define new attributes through the entity and characteristic specifications.<br/>