Collaborative modelling and co-simulation in the development of dependable embedded systems

  • Authors:
  • John Fitzgerald;Peter Gorm Larsen;Ken Pierce;Marcel Verhoef;Sune Wolff

  • Affiliations:
  • Newcastle University, UK;Aarhus School of Engineering, Denmark;Newcastle University, UK;Chess, Haarlem, The Netherlands;Aarhus School of Engineering, Denmark and Terma A/S, Denmark

  • Venue:
  • IFM'10 Proceedings of the 8th international conference on Integrated formal methods
  • Year:
  • 2010

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Abstract

This paper presents initial results of research aimed at developing methods and tools for multidisciplinary collaborative development of dependable embedded systems. We focus on the construction and analysis by cosimulation of formal models that combine discrete-event specifications of computer-based controllers with continuous-time models of the environment with which they interact. Basic concepts of collaborative modelling and co-simulation are presented. A pragmatic realisation using the VDM and Bond Graph formalisms is described and illustrated by means of an example, which includes the modelling of both normal and faulty behaviour. Consideration of a larger-scale example from the personal transportation domain suggests the forms of support needed to explore the design space of collaborative models. Based on experience so far, challenges for future research in this area are identified.