Termination of High-Level Replacement Units with Application to Model Transformation

  • Authors:
  • Paolo Bottoni;Manuel Koch;Francesco Parisi-Presicce;Gabriele Taentzer

  • Affiliations:
  • Università di Roma “La Sapienza” - Italy;Freie Universität Berlin - Germany;Università di Roma “La Sapienza” - Italy and George Mason University - USA;Technische Universität Berlin - Germany

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2005

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Abstract

Visual rewriting techniques, in particular graph transformations, are increasingly used to model transformations of systems specified through diagrammatic sentences. Several rewriting models have been proposed, differing in the expressivity of the types of rules and in the complexity of the rewriting mechanism; yet basic results concerning the formal properties of these models are still missing for many of them. In this paper, we propose a contribution towards solving the termination problem for rewriting systems with external control mechanisms. In particular, we obtain results of more general validity by extending the concept of transformation unit to high-level replacement systems, a generalization of graph transformation systems. For high-level replacement units, we state and prove several abstract properties based on termination criteria. Then, we instantiate the high-level replacement systems by attributed graph transformation systems and present concrete termination criteria. These are used to show the termination of some replacement units needed to express model transformations as a consequence of software refactoring.