The UML-B Profile for Formal Systems Modelling in UML
The UML is a populär modelling notation that has a natural appeal to hardware and Software engineers and is adaptable through extension mechanisms. Formal (mathematical) modelling languages, on the other hand, are seen as difficult and costly to use and have achieved only limited use despite the benefits that they offer. In previous work, we have proposed an Integration of UML and the formal notation, B and provided an automatic translator that produces a B specification. The integrated modelling notation, UML-B, inherits from both UML and B but primarily, is a specialisation of the UML. To achieve this Integration we have specialised UML modelling elements via stereotypes, added tagged values to represent B modelling features and imposed constraints to ensure that UML-B modeis are translated into usable B. Here we describe ongoing work to define UML-B as a profile in accordance with the UML extensibility mechanisms.
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