Towards data-aware constraints in declare

  • Authors:
  • Marco Montali;Federico Chesani;Paola Mello;Fabrizio M. Maggi

  • Affiliations:
  • Free University of Bozen-Bolzano, Italy;University of Bologna, Italy;University of Bologna, Italy;Eindhoven University of Technology, the Netherlands

  • Venue:
  • Proceedings of the 28th Annual ACM Symposium on Applied Computing
  • Year:
  • 2013

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Abstract

In recent years, declarative, constraint-based approaches have been proposed to model loosely-structured business processes, mediating between support and flexibility. A notable example is the Declare framework, equipped with a graphical declarative language whose semantics can be characterized with several logic-based formalisms. Up to now, Declare constraints have been mainly used to tackle control-flow aspects, abstracting away from data. In this work, we extend Declare so as to include task data and data-aware constraints. We show how the Event Calculus (EC) formalization of Declare can be improved to deal with such extensions, and to apply a reactive EC reasoner for monitoring data-aware constraints.