This description was written by a machine and published without a person checking it. It is what the agent made of this grouping, and not a statement anybody has stood behind.
What data is
A subject the papers are about. The loosest grouping, and the one to reach for last.
What data is, asked as a live question in the years before the answer everyone now uses. Collects that exchange and its resolution, each paper answering the last by name. Membership requires the work to argue the definition rather than assume it.
3 references
A relational model of data for large shared data banks
E. F. Codd (1970) · Communications of the ACM · Association for Computing Machinery
A deeper look at data
Ned Chapin (1968) · Proceedings of the 1968 23rd ACM National Conference · Association for Computing Machinery
Another look at data
George H. Mealy (1967) · Proceedings of the November 14-16, 1967, Fall Joint Computer Conference · Association for Computing Machinery