Extending model checking to data-aware temporal properties of web services

  • Authors:
  • Sylvain Hallé;Roger Villemaire;Omar Cherkaoui;Jérôme Tremblay;Boubker Ghandour

  • Affiliations:
  • Université du Québec à Montréal, Montréal, Canada;Université du Québec à Montréal, Montréal, Canada;Université du Québec à Montréal, Montréal, Canada;Université du Québec à Montréal, Montréal, Canada;Université du Québec à Montréal, Montréal, Canada

  • Venue:
  • WS-FM'07 Proceedings of the 4th international conference on Web services and formal methods
  • Year:
  • 2007

Quantified Score

Hi-index 0.00

Visualization

Abstract

A "data-aware" web service property is a constraint on the pattern of message exchanges of a workflow where the order of messages and their data content are interdependent. The logic CTL-FO+ expresses these properties by allowing temporal operators and first-order quantification over message content to be freely mixed. A "naíve" translation of CTL-FO+ into CTL leads to a serious exponential blow-up of the problem that prevents existing validation tools to be used. In this paper, we provide an alternate translation of CTL-FO+ into CTL where the construction of the workflow model depends on the property to validate. We show experimentally how this translation is significantly more efficient and makes model checking of data-aware temporal properties on real-world web service workflows tractable using off-the-shelf tools.