High-level nets with nets and rules as tokens

  • Authors:

  • Kathrin Hoffmann;Hartmut Ehrig;Till Mossakowski

  • Affiliations:

  • Institute for Software Technology and Theoretical Computer Science, Technical University Berlin;Institute for Software Technology and Theoretical Computer Science, Technical University Berlin;BISS,Department of Computer Science, University of Bremen

  • Venue:
  • ICATPN'05 Proceedings of the 26th international conference on Applications and Theory of Petri Nets
  • Year:
  • 2005

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Abstract

High-Level net models following the paradigm “nets as tokens” have been studied already in the literature with several interesting applications. In this paper we propose the new paradigm “nets and rules as tokens”, where in addition to nets as tokens also rules as tokens are considered. The rules can be used to change the net structure. This leads to the new concept of high-level net and rule systems, which allows to integrate the token game with rule-based transformations of P/T-systems. The new concept is based on algebraic high-level nets and on the main ideas of graph transformation systems. We introduce the new concept with the case study “House of Philosophers”, a dynamic extension of the well-known dining philosophers. In the main part we present a basic theory for rule-based transformations of P/T-systems and for high-level nets with nets and rules as tokens leading to the concept of high-level net and rule systems.