A Theoretical Proposal for a CASD System Extending Jackson’s Method for Program Construction

  • C. J. Lucena
  • R. C. B. Martins
  • P. A. S. Veloso
  • D. D. Cowan


This paper presents a new programming method called the data transform programming method. In particular, we present a specialization of data transform programming to deal with file processing applications. Direct comparison is made with Jackson’s approach by the presentation of uniform solutions to problems that cannot be solved through his basic method.

The new method consists of the application of data transformations to the abstract problem statement, following the formal notions of problem reduction and problem decomposition. Data transformations are expressed in programming terms through a basic set of data type constructors. The method reduces the original problem to a set of sub-problems that can be solved through the direct application of Jackson’s method. It produces a solution which is correct by construction.


Regular Expression File Processing Program Schema Problem Reduction Data Flow Graph 
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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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • C. J. Lucena
  • R. C. B. Martins
  • P. A. S. Veloso
    • 1
  • D. D. Cowan
    • 2
  1. 1.Departamento de InformáticaPontifícia Universidade CatólicaRio de JaneiroBrazil
  2. 2.Department of Computer ScienceUniversity of WaterlooWaterlooCanada

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