Distributed System Contract Monitoring

Adrian Francalanza Ph.D
(University of Malta)
Andrew Gauci M.Sc
(University of Malta)
Gordon Pace Ph.D
(University of Malta)

The use of behavioural contracts, to specify, regulate and verify systems, is particularly relevant to runtime monitoring of distributed systems. System distribution poses major challenges to contract monitoring, from monitoring-induced information leaks to computation load balancing, communication overheads and fault-tolerance. We present mDPi, a location-aware process calculus, for reasoning about monitoring of distributed systems. We define a family of Labelled Transition Systems for this calculus, which allow formal reasoning about different monitoring strategies at different levels of abstractions. We also illustrate the expressivity of the calculus by showing how contracts in a simple contract language can be synthesised into different mDPi monitors.

In Ernesto Pimentel and Valentín Valero: Proceedings Fifth Workshop on Formal Languages and Analysis of Contract-Oriented Software (FLACOS 2011), Málaga, Spain, 22nd and 23rd September 2011, Electronic Proceedings in Theoretical Computer Science 68, pp. 23–37.
Published: 12th September 2011.

ArXived at: http://dx.doi.org/10.4204/EPTCS.68.4 bibtex PDF
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