Abstract State Machines, Alloy, B and Z: Second by Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau,

By Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau, Steve Reeves

This publication constitutes the complaints of the second one overseas convention on summary nation Machines, B and Z, which came about in Orford, quality controls, Canada, in February 2010. The 26 complete papers offered have been rigorously reviewed and chosen from 60 submissions. The publication additionally includes invited talks and abstracts of 18 brief papers which deal with paintings in growth, business event studies and gear descriptions. The papers disguise contemporary advances in 4 both rigorous tools for software program and improvement: summary country machines (ASM), Alloy, B and Z. They proportion a typical conceptual framework, founded round the notions of country and operation, and advertise mathematical precision within the modeling, verification and building of hugely in charge structures.

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Extra resources for Abstract State Machines, Alloy, B and Z: Second International Conference, ABZ 2010, Orford, QC, Canada, February 22-25, 2010, Proceedings

Example text

By the ASM refinement framework defined in [2], these definitions turn the following sentence into a mathematically precise statement. Theorem 4. MsgPassSema is a correct refinement of MsgPassCtl . Proof. One has to show that given corresponding MsgPassSema , MsgPassCtl runs, for each message exchange triple move in the MsgPassSema run, one can find a corresponding message exchange triple move in the MsgPassCtl run such that the locations of interest in the corresponding states of interest are equivalent.

Represents the transition relation defined as: λ=D×H×D. C is the set of defined components. GVar is the set of specification’s global variables. Bc is a component binding relation defined as Bc =D×C. Bc specifies which element of D is associated with which component of C. – S is a plug-in binding relation defined as S = Stub×Plugin×Cond, where Stub is the set of TUCM stubs, Plugin is the set of plugin maps and Cond is the set of conditions governing the plugin selection. – Bs is a stub binding relation and is defined as Bs =Stub×{IN/OUT}×{SP/EP}.

The start point S1 is triggered at MClock = 0. UCM control constructs OR-Fork OF and AND-fork AF are urgent. OF takes one Fig. 1. UCM basic Example 38 J. Hassine time unit to complete while AF is instantaneous. End points E1 and E2 are urgent and instantaneous since they are not associated with any type of processing. e. C1 and C2). 4) use the class AGENT to specify the abstract set of agents ag. e. edge where the agent’s control lies. Every agent can mainly be characterized by: – A static function, id: AGENT→ String, used to identify system agents.

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