Toward Approximate Stochastic Model Checking of Computational Fields for Pervasive Computing Systems

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Jeremy Pitt (eds.)
Self-Adaptive and Self-Organizing Systems Workshops (SASOW), pages 199-204
April 2013

Pervasive context-aware computing networks call for designing algorithms for information propagation and reconfiguration that promote self-adaptation, namely, which can guarantee - at least to a probabilistic extent - certain reliability and robustness properties in spite of unpredicted changes and conditions. The possibility of formally analysing their properties is obviously an essential engineering requirement, calling for general-purpose models and tools. As proposed in recent works, several such algorithms can be modelled by the notion of "computational field": a dynamically evolving spatial data structure mapping every node of the network to a data value. Based on this idea, as a contribution toward formally verifying properties of pervasive computing systems, in this article we propose a specification language to model computational fields, and a framework based on PRISM stochastic model checker explicitly targeted at supporting temporal property verification, exploited for quantitative analysis of systems running on networks composed of hundreds of nodes.

keywordsSelf-organisation patterns, computational fields, formal verification, pervasive service ecosystems
origin event
worldASENSIS 2012@SASO 2012