Model-based analysis and development of dependable systems

  • Authors:
  • Christian Buckl;Alois Knoll;Ina Schieferdecker;Justyna Zander

  • Affiliations:
  • fortiss GmbH, Germany;Technische Universität München, Germany;Technical University Berlin, Germany and Fraunhofer FOKUS, Germany;Technical University Berlin, Germany and Fraunhofer FOKUS, Germany

  • Venue:
  • MBEERTS'07 Proceedings of the 2007 International Dagstuhl conference on Model-based engineering of embedded real-time systems
  • Year:
  • 2007

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Abstract

The term dependability was defined in the 1980s to encompass aspects like fault tolerance and system reliability. According to IFIP, it is defined as the trustworthiness of a computing system which allows reliance to be justifiably placed on the service it delivers. Hence, dependability is the capability of a system to successfully and safely complete its mission. This chapter concentrates on safety and reliability aspects. It starts with a review of the basic terminology including, for example, fault, failure, availability, and integrity. In the following, a mathematical model of fault-tolerant systems is defined. It is used in the further sections for comparison with different techniques for safety and reliability analysis. Also selected currently available model-based development tools are reviewed. A summary and identification of future research challenges conclude the chapter.