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Language and tool support for class and state machine refinement in UML-B

Said, Mar Yah and Butler, Michael and Snook, Colin (2009) Language and tool support for class and state machine refinement in UML-B. In: Formal Methods 2009, November 2009, Eindhoven.

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UML-B is a ?UML-like? graphical front end for Event-B that provides support for object-oriented modelling concepts. In particular, UML-B supports class diagrams and state machines, concepts that are not explicitly supported in plain Event-B. In Event-B, refinement is used to relate system models at different abstraction levels. The same abstraction-refinement concepts can also be applied in UML-B. This paper introduces the notions of refined classes and refined state machines to enable refinement of classes and state machines in UML-B. Together with these notions, a technique for moving an event between classes to facilitate abstraction is also introduced. Our work makes explicit the structures of class and state machine refinement in UML-B. The UML-B drawing tool and Event-B translator are extended to support the new refinement concepts. A case study of an auto teller machine (ATM) is presented to demonstrate application and effectiveness of refined classes and refined state machines.

Item Type:Conference or Workshop Item (Paper)
Additional Information:This work has been presented at the IM FMT 2009 workshop of the IFM2009 conference, Dusseldorf, Germany on 16 February 2009
Uncontrolled Keywords:visual modelling languages, formal specification, uml-b, event-b, rodin, refinement
Subjects:Methodology > Refinement
Methodology > Other
ID Code:434
Deposited By: Colin Snook
Deposited On:23 Jul 2012 11:05
Last Modified:23 Jul 2012 11:05

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