creators_name: Iliasov, Alexei creators_name: Troubitsyna, Elena creators_name: Laibinis, Linas creators_name: Romanovsky, Alexander creators_id: "Alexei Iliasov" creators_id: Elena.Troubitsyna@abo.fi creators_id: Linas.Laibinis@abo.fi creators_id: alexander.romanovsky@ncl.ac.uk type: monograph datestamp: 2009-05-27 20:48:29 lastmod: 2010-04-19 15:05:54 metadata_visibility: show title: Towards Automated Refinement: Patterns in Event B ispublished: unpub subjects: deploy_method_comp subjects: deploy_method full_text_status: public monograph_type: working_paper pres_type: paper abstract: Formal modelling is indispensable for engineering highly dependable systems. However, a wider acceptance of formal methods is hindered by their insufficient usability and scalability. In this paper, we aim at assisting developers in rigorous modelling and design by increasing automation of development steps. We introduce a notion of refinement patterns – generic representations of typical correctness-preserving model transformations. Our definition of a refinement pattern contains a description of syntactic model transformations, as well as the pattern applicability conditions and proof obligations for verification of correctness preservation. This establishes a basis for building a tool supporting formal system development via pattern reuse and instantiation. We present a prototype of such a tool and some examples of refinement patterns for automated development in the Event B formalism. date: 2009-05-19 publisher: Technical Report event_title: event_location: event_dates: event_type: other refereed: FALSE citation: Iliasov, Alexei and Troubitsyna, Elena and Laibinis, Linas and Romanovsky, Alexander (2009) Towards Automated Refinement: Patterns in Event B. Working Paper. Technical Report. (Unpublished) document_url: http://deploy-eprints.ecs.soton.ac.uk/106/1/main-ictac2009.pdf