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An approach for a working relational data system

Users of large data bases and applications programs which access them must be prevented from having to know how the information they access is organized internally. On the other hand, systems programmers must be allowed to arrange the data base in some way which is both natural and convenient to them.
 This paper proposes a system which acts as an interface between a user or an applications program, and a data base which consists of multiple files of differing types. The system handles all requests for data, and returns the results in a standard way. The most important feature of this system is that it presents a standard view of data that is highly independent of its machine representation.