Abstract
A communication system evolves dynamically with the addition and deletion of services. In our previous work [12], a graph transformation system (GTS) was used to model the dynamic behaviour of a telecommunication system. In this paper, we show how GTS modeling can facilitate verification of invariant properties of potentially infinite-state communication systems. We take as a case study for this approach an invariant property of telecommunication service components that can act both as the source and the target of a connection. Verifying an ordering among service components to be invariant is essential to guarantee the desirable behaviour of these services. We show how the verification can be performed by the analysis of a finite set of transformation rules describing the GTS system model. We prove that invariant properties are preserved in a GTS model if the set of transformation rules describing the model satisfies the property. Thus, we show how to perform system verification through analysis of the model description without building the full system state space.
The authors’ research is supported in part by a grant from the Natural Sciences and Engineering Research Council of Canada.
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Langari, Z., Trefler, R. (2009). Application of Graph Transformation in Verification of Dynamic Systems. In: Leuschel, M., Wehrheim, H. (eds) Integrated Formal Methods. IFM 2009. Lecture Notes in Computer Science, vol 5423. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00255-7_18
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DOI: https://doi.org/10.1007/978-3-642-00255-7_18
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