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Modeling and Analysis of Reo Connectors Using Alloy

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Part of the Lecture Notes in Computer Science book series (LNPSE,volume 5052)


Reo is an exogenous coordination language based on a calculus of channel composition. Different formal models have been developed for this language. In this paper, we present a new approach to modeling and analysis of Reo connectors using Alloy which is a lightweight modeling language based on first-order relational logic. We provide a reusable library of Reo channels in Alloy that can be used to create a model of a Reo connector in Alloy. The model is simple and reflects the original structure of the connector. Furthermore, the model of a connector can be reused as a component for constructing more complex connectors. Using the Alloy Analyzer tool, properties expressed as predicates can be verified by automatically analyzing the execution traces of the Reo connector. We handle the context-sensitive behavior of channels as well as optional constraints on the interactions with environment. Our compositional model can be used as an alternative to other existing approaches, and is supported by a well known tool with a rich set of features such as counterexample generation.


  • Model Check
  • Data Item
  • Sink Node
  • Channel Type
  • Execution Trace

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  • DOI: 10.1007/978-3-540-68265-3_11
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  1. Alloy Analyzer,

  2. Arbab, F.: Reo: A channel-based coordination model for component composition. Mathematical Structures in Computer Science 14(3), 1–38 (2004)

    CrossRef  MathSciNet  Google Scholar 

  3. Arbab, F., Rutten, J.J.: A coinductive calculus of component connectors. In: Wirsing, M., Pattinson, D., Hennicker, R. (eds.) WADT 2003. LNCS, vol. 2755, pp. 34–55. Springer, Heidelberg (2003)

    Google Scholar 

  4. Baier, C., Sirjani, M., Arbab, F., Rutten, J.J.: Modeling component connectors in Reo by constraint automata. Science of Computer Programming 61, 75–113 (2006)

    MATH  CrossRef  MathSciNet  Google Scholar 

  5. Clarke, D., Costa, D., Arbab, F.: Connector colouring I: synchronisation and context dependency. In: Proceedings of FOCLASA 2005. ENTCS, vol. 154, pp. 101–119. Elsevier, Amsterdam (2006)

    Google Scholar 

  6. Eclipse Coordination Tools homepage,

  7. Gamma, E., Helm, R., Johnson, R., Vlissides, J.M.: Design Patterns: Elements of Reusable Object-Oriented Software. Addison-Wesley Professional, Reading (1994)

    Google Scholar 

  8. Jackson, D., Shlyakhter, I., Sridharan, M.: A micromodularity mechanism. In: Proceedings of Foundations of Software Engineering, pp. 62–73 (2001)

    Google Scholar 

  9. Jackson, D.: Alloy3.0 Reference manual (May 10, 2004),

  10. Jackson, D.: Software abstractions, logic, language, and analysis. MIT Press, Cambridge (2006)

    Google Scholar 

  11. Klüppelholz, S., Baier, C.: Symbolic model checking for channel-based component connectors. In: Proceedings of FOCLASA 2006. ENTCS, vol. 175, pp. 19–37. Springer, Heidelberg (2007)

    Google Scholar 

  12. Manna, Z., Pnueli, A.: The Temporal Logic of Reactive and Concurrent Systems:Specification. Springer, Heidelberg (1992)

    Google Scholar 

  13. Maude system,

  14. Mousavi, M.R., Sirjani, M., Arbab, F.: Formal semantics and analysis of component connectors in Reo. In: Proceedings of FOCLASA 2005. ENTCS, vol. 154, pp. 83–99. Elsevier, Amsterdam (2005)

    Google Scholar 

  15. Papadopoulos, G.A., Arbab, F.: Coordination models and languages. Report SEN-R9834, CWI (December 1998)

    Google Scholar 

  16. Relloy Library,

  17. Talcott, C., Sirjani, M., Ren, S.: Comparing Three Coordination Models: Reo, ARC, and RRD. In: Proceedings of FOCLASA 2007 (to appear, 2007)

    Google Scholar 

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Khosravi, R., Sirjani, M., Asoudeh, N., Sahebi, S., Iravanchi, H. (2008). Modeling and Analysis of Reo Connectors Using Alloy. In: Lea, D., Zavattaro, G. (eds) Coordination Models and Languages. COORDINATION 2008. Lecture Notes in Computer Science, vol 5052. Springer, Berlin, Heidelberg.

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  • Print ISBN: 978-3-540-68264-6

  • Online ISBN: 978-3-540-68265-3

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