Abstraction and Testing

  • Authors:
  • Steve Schneider

  • Affiliations:
  • -

  • Venue:
  • FM '99 Proceedings of the Wold Congress on Formal Methods in the Development of Computing Systems-Volume I - Volume I
  • Year:
  • 1999

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Abstract

Restricted views of process behaviour result in a form of abstraction which is useful in the construction of specifications involving fault-tolerance and atomicity. This paper presents an operational characterisation of abstraction for refusable and non-refusable events in terms of testing. This view is related to standard notions of testing, and is given a new denotational characterisation encapsulated within the CSP denotational semantics. It informs, reinforces and extends the traditional denotational approach to abstraction.