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1998 Technical Reports

Using an Object-Oriented Predicative Style to Solve the Invoicing Problem

Richard Paige

Technical Report CS-1998-03

York University

March 26, 1998


We apply the predicative programming formal method of Hehner in specifying and designing a solution to the invoicing case study. The method is used in an object-oriented style: first-class citizens of the descriptions are classes and objects. We discuss some of the advantages to using the predicative method in its object-oriented style, as well as its limitations in this problem domain.

(Also published in the Proceedings of the International Workshop on Comparing System Specification Techniques, Nantes, France, March 1998.)

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