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Erschienen in:
2001 | OriginalPaper | Buchkapitel
Progress Properties
verfasst von : Jayadev Misra
Erschienen in: A Discipline of Multiprogramming
Verlag: Springer New York
Enthalten in: Professional Book Archive
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Safety properties, discussed in chapter 5, allow us to state that “the program does no harm”. A trivial program that causes no state change —a program that consists only of a skip action, for instance— satisfies all the safety properties. Thus, safety properties alone are insufficient as a basis of program design. Several formal aspects of program design and refinement are seriously affected by the absence of a requirement that the program must guarantee some desirable state changes.