--- abstract: "Formal modeling of computing systems yields models that are intended to be correct with respect to the requirements that have been formalized. \r\nThe complexity of typical computing systems can be addressed by formal refinement introducing all the necessary details piecemeal.\r\nWe report on preliminary results that we have obtained for tracing informal natural-language requirements into formal models across refinement levels.\r\nThe approach uses the WRSPM reference model for requirements modeling, and Event-B for formal modeling and formal refinement. \r\nThe combined use of WRSPM and Event-B is facilitated by the rudimentary refinement notion of WRSPM, \r\nwhich provides the foundation for tracing requirements to formal refinements.\r\n\r\nWe assume that requirements are evolving, meaning that we have to cope with frequent changes of the requirements model and the formal model. \r\nOur approach is capable of dealing with frequent changes, making use of corresponding techniques already built into the Event-B method." accompaniment: [] book_title: ~ commentary: ~ completion_time: ~ composition_type: ~ conductors_id: [] conductors_name: [] contact_email: ~ copyright_holders: [] corp_creators: [] creators_id: - michael@jastram.de - sth@ecs.soton.ac.uk - leuschel@cs.uni-duesseldorf.de - agrj@aes.com.br creators_name: - family: Jastram given: Michael honourific: '' lineage: '' - family: Hallerstede given: Stefan honourific: '' lineage: '' - family: Leuschel given: Michael honourific: '' lineage: '' - family: Russo Jr given: Aryldo G honourific: '' lineage: '' data_type: ~ date: 2010 date_type: published datestamp: 2010-07-08 09:48:34 department: ~ dir: disk0/00/00/02/36 divisions: [] edit_lock_since: ~ edit_lock_until: 0 edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 236 event_dates: 16th-19th August 2010 event_location: 'Edinburgh, UK' event_title: 'VSTTEā€™10 Verified Software: Theories, Tools and Experiments' event_type: conference exhibitors_id: [] exhibitors_name: [] fileinfo: /style/images/fileicons/application_pdf.png;/236/2/2010%2D03_Formal_Modelling_of_Requirements.pdf full_text_status: public funders: [] id_number: ~ importid: ~ institution: ~ isbn: ~ ispublished: inpress issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'Requirements Traceability, WRSPM, Formal Modeling, Refinement, Event-B' lastmod: 2010-07-18 22:51:59 latitude: ~ learning_level: ~ longitude: ~ lyricists_id: [] lyricists_name: [] metadata_visibility: show monograph_type: ~ note: ~ num_pieces: ~ number: ~ official_url: ~ output_media: ~ pagerange: ~ pages: ~ patent_applicant: ~ pedagogic_type: ~ place_of_pub: ~ pres_type: paper producers_id: [] producers_name: [] projects: [] publication: ~ publisher: ~ refereed: TRUE referencetext: ~ related_url_type: [] related_url_url: [] relation_type: [] relation_uri: [] rev_number: 18 series: ~ skill_areas: [] source: ~ status_changed: 2010-07-18 22:51:59 subjects: - deploy_method_reqevo - deploy_training_rodinplugins succeeds: 235 suggestions: ~ sword_depositor: ~ sword_slug: ~ task_purpose: ~ thesis_type: ~ title: "An Approach of Requirements Tracing in Formal Refinement\r\n" type: conference_item userid: 259 volume: ~