Formal incremental requirements specification of service-oriented automotive software systems

  • Authors:
  • J. Hartmann;S. Rittmann;D. Wild;P. Scholz

  • Affiliations:
  • Technische Universität München, Germany;Technische Universität München, Germany;Technische Universität München, Germany;Fachbereich für Informatik, Germany

  • Venue:
  • SOSE '06 Proceedings of the Second IEEE International Symposium on Service-Oriented System Engineering
  • Year:
  • 2006

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Abstract

In this paper, we introduce a simple but formal service description language (ForSeL) for modelbased requirements engineering. The basic notion in ForSeL is a service representing a functional requirement. Each service describes a system "re"-action that is triggered by a set of input actions -- (but only) if an additional precondition holds. The functional part of a specification is then obtained by the combination of a finite number of services. We pay special attention to two kinds of preconditions which are often mixed up in practice: sufficient and necessary preconditions. Moreover, we present refinement concepts for services that enable a stepwise development of functional requirements.