Feature Analysis of CODASYL Data Base Management Systems,
DEPARTMENT OF DEFENSE WASHINGTON D C
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The CODASYL specifications, it is generally assumed, represent currently the most viable approach towards developing commonality among data base management systems. Though it is still a long way from becoming a standard, implementations based on the CODASYL specifications may significantly diminish the problems associated with data base sharing and portability of programs between heterogeneous computer systems, problems which are becoming more prevalent with the advent of computer networking. This report will look in detail at four systems of the CODASYL family. Their features will be outlined to allow a judgement on the commonality that exists with the CODASYL approach. The four systems are DBMS-10, available from Digital Equipment Corporation on the PDP-10 IDMS, marketed by the Cullinane Corporation and running primarily on IBM equipment DMS 1100, a Univac product on the 1100 series and EDMS by Xerox, implemented on its Sigma and 560 series.
- Computer Programming and Software
- Computer Systems