Titlebook: Abstract State Machines, B and Z; First International Egon B?rger,Michael Butler,Paul Boca Conference proceedings 2008 Springer-Verlag Ber

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J?rg Frauendiener,Salvatore Vultaggioevent fusion (over intersecting state variable lists). A brief motivation is provided for these and other forms of composition of models, in terms of feature-based modelling. We show that model consistency is preserved under such compositions. More significantly we show that model composition preserves refinement.

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E. Prema,R. Vijaya Bharathi,V. Shyam SundarThis paper is a reprise of a paper presented at ZB2000 that attempted to reconcile the worlds of model-based and axiomatic specification. The new paper uses the same problem, but treats it very differently in Event?B. The development also serves as a short tutorial example in Event?B.

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https://doi.org/10.1007/978-3-540-87603-8B method; abstract state machines; access control; automatic verification; complex systems; cryptography;