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- W45700654 abstract "The major problem of the official UML semantics is it lacks the precise definition which is required for performing a formal analysis and reasoning on statechart diagrams. This thesis first examines a rigorous approach for the formalization of the execution semantics of communicating UML statechart diagrams in the π-calculus. An integrated approach which is based on the formalized execution semantics is then proposed for the equivalence checking and model checking of statechart diagrams. Our formalization transforms a subset of UML statechart diagrams as distinct from statecharts into the π-calculus as a number of processes which communicate via a channel-passing interaction paradigm. Checking equivalence of any two statechart diagrams is transformed to a problem of verifying whether the corresponding π-calculus process expressions are equivalent. An equivalence-checking environment which consists of three software tools is described and demonstrated. The environment allows a user to draw statechart diagrams with Poseidon for UML, translate them into π-calculus representations with SC2PiCal and check whether the statechart diagrams are equivalent using the MWB. Likewise, we put forward a model-checking environment. To verify the correctness of a finite state system represented as multiple interacting statechart diagrams, we specify the design in statechart, diagrams using Poseidon for UML, formalize them in the π-calculus, transform the π-calculus expressions into equivalent NuSMV code using PiCal2NuSMV and verify the system automatically using the NuSMV model checker. Our work illustrates how an integrated approach can provide a more thorough analysis of statechart diagrams. The main contributions of this thesis are: (i) a formal definition of the execution semantics of statechart diagrams; (ii) an integration of different formal methods and tools for analyzing statechart diagrams, and (iii) a practical application of the proposed approach for verifying the correctness of SET/A protocol." @default.
- W45700654 created "2016-06-24" @default.
- W45700654 creator A5051891723 @default.
- W45700654 date "2006-01-01" @default.
- W45700654 modified "2023-09-23" @default.
- W45700654 title "A formal execution semantics and rigorous analytical approach for communicating uml statechart diagrams" @default.
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