Mobility

Loupe: Verifying Publish-Subscribe Architectures With a Magnifying Lens

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Executive Summary

The Publish-Subscribe (P/S) communication paradigm fosters high decoupling among distributed components. This facilitates the design of dynamic applications, but also impacts negatively on their verification, making it difficult to reason on the overall federation of components. In addition, existing P/S infrastructures offer radically different features to the applications, e.g., in terms of message reliability. This further complicates the verification, as its outcome depends on the specific guarantees provided by the underlying P/S system. Although model checking has been proposed as a tool for the verification of P/S architectures, existing solutions overlook many characteristics of the underlying communication infrastructure to avoid state explosion problems.

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