d Information Sciences] 
n., A named value or relationship that exists for some or all instances of some entity and is directly associated with that instance.
[Computer and Information Sciences] 
n., In relational database management, a field within a record. [Computer and Information Sciences] 
might be made in the audit trail whenever a user logs in or accesses a file. Examination of the audit trail may detect attempts at
a.,
 Of or relating to the use of sound and/or visual images to present information.