Behavioural semantics for asynchronous components

Abstract : Software components are a valuable programming abstraction that enables a compositional design of complex applications. In distributed systems, components can also be used to provide an abstraction of locations: each component is a unit of deployment that can be placed on a different machine. In this article, we consider this kind of distributed components that are additionally loosely coupled and communicate by asynchronous invocations. Components also provide a convenient abstraction for verifying the correct behaviour of systems: they provide structuring entities easing the correctness verification. This article provides a formal background for the generation of behavioural semantics for asynchronous components. It expresses the semantics of hierarchical distributed components communicating asynchronously by requests, futures, and replies; this semantics is provided using the pNet intermediate language. This article both demonstrates the expressiveness of the pNet model and formally specifies the complete process of the generation of a behavioural model for a distributed component system. The purpose of our be-havioural semantics is to allow for verification both by finite instantiation and model-checking, and by techniques for infinite systems.
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Journal of Logical and Algebraic Methods in Programming, Elsevier, 2017, 89, pp.1 - 40. 〈10.1016/j.jlamp.2017.02.003〉
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Rabéa Ameur-Boulifa, Ludovic Henrio, Oleksandra Kulankhina, Eric Madelaine, Alexandra Savu. Behavioural semantics for asynchronous components. Journal of Logical and Algebraic Methods in Programming, Elsevier, 2017, 89, pp.1 - 40. 〈10.1016/j.jlamp.2017.02.003〉. 〈hal-01526055〉

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