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Verification of UML models by translation to UML-B

Snook, Colin and Savicks, Vitaly and Butler, Michael (2011) Verification of UML models by translation to UML-B. In: Formal Methods for Components and Objects, 29 Nov 2010, Graz.

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UML-B is a `UML like' notation based on the Event-B formalism which allows models to be progressively detailed through refinements that are proven to be consistent and to satisfy safety invariants using the Rodin platform and its automatic proof tools. UML, on the other hand, encourages large models to be expressed in a single, detailed level and relies on simulation and model testing techniques for verification. The advantage of proof over model-testing is that the proof is valid for all instantiations of the model whereas a simulation must choose a typical instantiation. In the INESS project we take an extant UML model of a railway interlocking system and explore methodical ways to translate it into UML-B in such a way as to facilitate proof that the model satisfies certain safety properties which are expressed as invariants. We describe the translation attempted so far and insights that we have gained from attempting to prove a safety property. We propose some possible improvements to the translation which we believe will make the proof easier.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:UML-B UML
Subjects:Methodology > Refinement
Industrial Deployment > Transportation
Methodology > Proof and model checking
Event-B > Event-B Examples
ID Code:444
Deposited By: Colin Snook
Deposited On:23 Jul 2012 12:29
Last Modified:23 Jul 2012 12:29

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