A formal framework for modelling and validating medical systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Medical computerised systems which have a major effect on human lives (e.g. those used for diagnosis, therapy, surgery, in the intensive care units, etc) are considered as safety critical systems. Such systems are sometimes responsible for major damages and injuries due to unpredicted malfunction. Misleading user requirements, errors in the specification and in the implementation are the usual reasons responsible for non-safe systems. This paper advocates the use of an integrated formal framework based on a computational machine (X-Machine), in the development of safety critical medical systems. This formal framework gives the ability to intuitively as well as formally model a system, then automatically check if the produced model has all the desired properties, and finally test if the implementation is equivalent to the specification by applying a complete set of test cases. Therefore, the use of this framework in the development of systems in safety critical medical domains can assure that the final product is valid with respect to the user requirements by revealing errors during the whole development life cycle and subsequently add to the confidence of their use. The proposed framework is accompanied by an example, which demonstrates the use of X-Machines in specification, testing and verification.

Original languageEnglish (US)
Title of host publicationMEDINFO 2001 - Proceedings of the 10th World Congress on Medical Informatics
PublisherIOS Press
Number of pages5
ISBN (Print)1586031945, 9781586031947
StatePublished - 2001
Event10th World Congress on Medical Informatics, MEDINFO 2001 - London, United Kingdom
Duration: Sep 2 2005Sep 5 2005

Publication series

NameStudies in Health Technology and Informatics
ISSN (Print)0926-9630
ISSN (Electronic)1879-8365


Other10th World Congress on Medical Informatics, MEDINFO 2001
Country/TerritoryUnited Kingdom

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Health Informatics
  • Health Information Management


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