Performability modeling of exceptions-aware systems in multiformalism tools

  • Authors:
  • Enrico Barbierato;Marco Gribaudo;Mauro Iacono;Stefano Marrone

  • Affiliations:
  • Dip. di Informatica, Università di Torino, Torino, Italy;Dip. di Elettronica e Informazione, Politecnico di Milano, Milano, Italy;Dip. di studi Europei e Mediterranei, Seconda Università degli Studi di Napoli, Caserta, Italy;Dip. di Matematica, Seconda Università degli Studi di Napoli, Caserta, Italy

  • Venue:
  • ASMTA'11 Proceedings of the 18th international conference on Analytical and stochastic modeling techniques and applications
  • Year:
  • 2011

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Abstract

Exceptions constitute a widely accepted fault tolerance mechanism, suitable to manage both hardware and software faults. In performability analysis it is a common practice to exploit software tools capable of describing a system using models expressed in various formalisms. Often these tools provide extensibility features that allow augmenting the primitives of a given formalism, but in most cases they lack of exception support. This paper aims at filling this gap, by introducing a general mechanism to add support for exception handling to most of the existing formalisms. The validity of the proposed method is supported by two modelling cases that benefit in clarity and economy.