The Dangerous 'All' in Specifications

  • Authors:
  • Daniel M. Berry;Erik Kamsties

  • Affiliations:
  • Computer Science Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada;Fraunhofer Institute for Experimental Software Engineering, Kaiserslautern, D-67661 Germany

  • Venue:
  • IWSSD '00 Proceedings of the 10th International Workshop on Software Specification and Design
  • Year:
  • 2000

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Abstract

Rupp and Götz observe that some, but not all, requirement specification sentences involving universal quantification, are dangerous because they are usually not true. Jackson and Zave provide a classification of requirement specification sentences into indicative and optative sentences. It is observed that the dangerous sentences involving universal quantifiers are all indicative.