Data refinement and singleton failures refinement are not equivalent

  • Authors:
  • Steve Reeves;David Streader

  • Affiliations:
  • University of Waikato, Department of Computer Science, Hamilton, New Zealand;University of Waikato, Department of Computer Science, Hamilton, New Zealand

  • Venue:
  • Formal Aspects of Computing
  • Year:
  • 2008

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Abstract

In this paper, we give simple example abstract data types, with atomic operations, that are related by data refinement under a definition used widely in the literature, but these same abstract data types are not related by singleton failure refinement. This contradicts results found in the literature.