DF Language

A Program Development Tool Applying a Concept of Data Flow
  • Hidenobu Ishida
  • Michio Ohnishi
Conference paper


The DF language (DF-COBOL and DF-PLI) developed by a new concept of data flow is a software for designing, developing, and maintaining business applications. It consists of the DF chart and DF language.

The DF chart is a powerful tool for describing briefly and appropriately the specifications of applications by using the technique of data flow and is the basis for DF language.

The DF language consists of elements which correspond to elements of the DF chart, so it is very easy to understand. It also generates automatically COBOL or PLI programs. Basic processing units prepared in the DF language are designed by using a complete modular concept, so the module units can be combined without any restriction, and the DF language has high generalities and low redundancies. The DF language can provide great improvements in application development productivity by using the technique of data flow.


Data Flow Mutual Relationship Processing Content Module Unit User Routine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    K.P. Gostelow and R.E. Thomas: “A View of Data Flow,” AFIPS Conf. Proc., Vol.48, 1979 NCC, AFIPS Press, Reston, V.A., pp. 626–636.Google Scholar
  2. 2.
    James Martin: “Application Development without Programmers,” Prentice-Hall, Englewood Cliffs, N.J., 1978.Google Scholar
  3. 3.
    Tadao Ezaki:“A Macro Language,” Technical Report of Mitsui Enginerring & Shipbuilding, No.8, Tokyo, 1976.Google Scholar
  4. 4.
    Hideki Myoko, Hidenobu Ishida and Michio Ohnishi: “DF-COBOL,” IBM Review, No.79, Tokyo, 1980.Google Scholar

Copyright information

© Springer-Verlag Tokyo 1986

Authors and Affiliations

  • Hidenobu Ishida
    • 1
  • Michio Ohnishi
    • 1
  1. 1.Mitsui Engineering & Shipbuilding Co., Ltd.Japan

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