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Systematic program development

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1 Author(s)
Dromey, R.G. ; Dept. of Comput. Sci., Wollongong Univ., NSW, Australia

A constructive method of program development is presented. It is based on a simple strategy for problem decomposition that is claimed to be more supportive of goal-oriented programming than the Wirth-Dijkstra top-down refinement method. With the proposed method, a program is developed by making a sequence of refinements, each of which can establish the postcondition for a corresponding sequence of progressively weaker preconditions until a mechanism has been composed that will establish the postcondition for the original given precondition for the problem. The strategy can minimize case analysis, simplify constructive program proofs, and ensure a correspondence between program structure and data structure

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Software Engineering, IEEE Transactions on  (Volume:14 ,  Issue: 1 )