Modeling computer systems evolutions: non-stationary processes and stochastic Petri nets-application to dependability growth

  • Authors:
  • J.-C. Laprie;M. Kaaniche;K. Kanoun

  • Affiliations:
  • -;-;-

  • Venue:
  • PNPM '95 Proceedings of the Sixth International Workshop on Petri Nets and Performance Models
  • Year:
  • 1995

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Abstract

Stochastic Petri nets (SPNs) have emerged over the years as a favored approach for performance and dependability modeling and evaluation. Their usual utilization assumes that systems specification and design do not evolve, in opposition to real-life. This paper is aimed at a preliminary exploration of how to take advantage of the existing body of results on SPNs for modeling the evolution of computer systems, i.e. to model non-stationary stochastic processes. It focuses on dependability evolutions which result from successive releases.