A relational model of data for large shared data banks
Communications of the ACM
Summary of current work ANSI/X3/SPARC/study group: database systems
ACM SIGMOD Record
ACM SIGMIS Database
The entity-relationship model: a basis for the enterprise view of data
AFIPS '77 Proceedings of the June 13-16, 1977, national computer conference
A new methodology for database requirements analysis
MIS Quarterly
Multiple views and abstractions with an extended-entity-relationship model
Computer Languages
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The subject of database management systems is receiving attention at an accelerating rate. The work of the COBOL Data Base Task Group (DBTG) has achieved major acceptance. This acceptance can be measured in terms of the number of computer systems for which DBTG software is now available, and the number of customers who have successfully installed application systems based upon this software. While the specifications are yet imperfect and development committees will be refining them for years, it appears to this author that a major step in the evolution of computerized information systems has been accomplished. Integrated database systems are here to stay.