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A Method of Refinement in UML-B

A Method of Refinement in UML-B
A Method of Refinement in UML-B
UML-B is a ‘UML-like’ graphical front end for Event-B that provides support for object-oriented and state-machine modelling concepts, which are not available in Event-B. In particular, UML-B includes class diagram and state-machine diagram editors with automatic generation of corresponding Event-B. In Event- B, refinement is used to relate system models at different abstraction levels. The same refinement concepts are also applicable in UML-B but require special consideration due to the higher-level modelling concepts. In previous work we described a case study to introduce support for refinement in UML-B. We now provide a more complete presentation of the technique of refinement in UML-B including a formalisation of the refinement rules and a definition of the extensions to the abstract syntax of UML-B notation. The provision of gluing invariants to discharge the proof obligations associated with a refinement is a significant step in providing verifiable models. We discuss and compare two approaches for constructing gluing invariants in the context of UML-B refinement.
1619-1366
Said, Mar Yah
918c308e-332d-4b9a-a2de-58d91e2ac0c6
Butler, Michael
54b9c2c7-2574-438e-9a36-6842a3d53ed0
Snook, Colin
b2055316-9f7a-4b31-8aa1-be0710046af2
Said, Mar Yah, Butler, Michael and Snook, Colin (2015) A Method of Refinement in UML-B Software and Systems Modeling, 14, (4)

Said, Mar Yah, Butler, Michael and Snook, Colin (2015) A Method of Refinement in UML-B Software and Systems Modeling, 14, (4)

Record type: Article

Abstract

UML-B is a ‘UML-like’ graphical front end for Event-B that provides support for object-oriented and state-machine modelling concepts, which are not available in Event-B. In particular, UML-B includes class diagram and state-machine diagram editors with automatic generation of corresponding Event-B. In Event- B, refinement is used to relate system models at different abstraction levels. The same refinement concepts are also applicable in UML-B but require special consideration due to the higher-level modelling concepts. In previous work we described a case study to introduce support for refinement in UML-B. We now provide a more complete presentation of the technique of refinement in UML-B including a formalisation of the refinement rules and a definition of the extensions to the abstract syntax of UML-B notation. The provision of gluing invariants to discharge the proof obligations associated with a refinement is a significant step in providing verifiable models. We discuss and compare two approaches for constructing gluing invariants in the context of UML-B refinement.

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More information

Published date: October 2015
Organisations: Electronic & Software Systems

Identifiers

Local EPrints ID: 360028
URI: http://eprints.soton.ac.uk/id/eprint/360028
ISSN: 1619-1366
PURE UUID: 691245c0-48c9-4efa-b88f-07faa24eb36b
ORCID for Michael Butler: ORCID iD orcid.org/0000-0003-4642-5373
ORCID for Colin Snook: ORCID iD orcid.org/0000-0002-0210-0983

Catalogue record

Date deposited: 21 Nov 2013 12:19
Last modified: 18 Jul 2017 03:15

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Contributors

Author: Mar Yah Said
Author: Michael Butler ORCID iD
Author: Colin Snook ORCID iD

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