--- abstract: "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. " accompaniment: [] book_title: ~ commentary: ~ completion_time: ~ composition_type: ~ conductors_id: [] conductors_name: [] contact_email: ~ copyright_holders: [] corp_creators: [] creators_id: [] creators_name: - family: Snook given: Colin honourific: '' lineage: '' - family: Savicks given: Vitaly honourific: '' lineage: '' - family: Butler given: Michael honourific: '' lineage: '' data_type: ~ date: 2011 date_type: published datestamp: 2012-07-23 12:29:58 department: ~ dir: disk0/00/00/04/44 divisions: [] edit_lock_since: ~ edit_lock_until: 0 edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 444 event_dates: 29 Nov 2010 event_location: Graz event_title: Formal Methods for Components and Objects event_type: conference exhibitors_id: [] exhibitors_name: [] fileinfo: ~ full_text_status: none funders: [] id_number: ~ importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: ~ item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: UML-B UML lastmod: 2012-07-23 12:29:58 latitude: ~ learning_level: ~ longitude: ~ lyricists_id: [] lyricists_name: [] metadata_visibility: show monograph_type: ~ note: ~ num_pieces: ~ number: ~ official_url: http://eprints.soton.ac.uk/272921/ output_media: ~ pagerange: 251 pages: ~ patent_applicant: ~ pedagogic_type: ~ place_of_pub: ~ pres_type: paper producers_id: [] producers_name: [] projects: [] publication: Lecture Notes in Computer Science publisher: Springer refereed: TRUE referencetext: ~ related_url_type: [] related_url_url: [] relation_type: [] relation_uri: [] rev_number: 10 series: ~ skill_areas: [] source: ~ status_changed: 2012-07-23 12:29:58 subjects: - Refinement - deploy_industrial_trans - deploy_method_proof - examples succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ task_purpose: ~ thesis_type: ~ title: Verification of UML models by translation to UML-B type: conference_item userid: 258 volume: 6957