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      Procedures in the Refinement Calculus: A New Approach?

      Proceedings of the BCS-FACS 7th Refinement Workshop (RW)

      BCS-FACS 7th Refinement Workshop

      3-5 July 1996

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          Abstract

          We examine the use of procedures in the refinement calculus and show that the traditional approach leads to certain problemswhen programs are not constructed in a strictly top-downmanner. These problems arise because a procedure name becomes associated with the implementation when the procedure body is refined, and we examine some ways in which they may be avoided. We argue that, because procedures are not required in order to express procedural abstractions, the primary purpose of using procedures in program refinement is to do with packaging the final program, and that decisions about how a program is packaged into procedures should bemade separately from algorithm design decisions. We present an alternative approach based on this rationale which avoids the aforementioned problems, and discuss ways in which it can be supported by a refinement tool.

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          Most cited references 14

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          An axiomatic basis for computer programming

           C. Hoare (1969)
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            Literate Programming

             D. Knuth (1984)
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              Program development by stepwise refinement

               Niklaus Wirth (1971)
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                Author and article information

                Contributors
                Conference
                July 1996
                July 1996
                : 1-12
                Affiliations
                Department of Computer Science

                Victoria University of Wellington

                Wellington, New Zealand
                Article
                10.14236/ewic/RW1996.6
                © Lindsay Groves. Published by BCS Learning and Development Ltd. Proceedings of the BCS-FACS 7th Refinement Workshop, Bath

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                Proceedings of the BCS-FACS 7th Refinement Workshop
                RW
                7
                Bath
                3-5 July 1996
                Electronic Workshops in Computing (eWiC)
                BCS-FACS 7th Refinement Workshop
                Product
                Product Information: 1477-9358BCS Learning & Development
                Self URI (journal page): https://ewic.bcs.org/
                Categories
                Electronic Workshops in Computing

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