Calculating Architectural Reliability via Modeling and Analysis

  • Authors:
  • Roshanak Roshandel

  • Affiliations:
  • University of Southern California

  • Venue:
  • Proceedings of the 26th International Conference on Software Engineering
  • Year:
  • 2004

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Abstract

We present a software architecture-based approach tocompositional estimation of systemýs reliability. Ourapproach is applicable to early stages of developmentwhen the implementation artifacts are not yet available,and exact execution profile is unknown. The uncertainty ofthe execution profile is modeled using stochastic processeswith unknown parameters. The compositional approachcalculates overall reliability of the system as a function ofthe reliability of its constituent components and their(complex) interactions. Sensitivity analysis to identify criticalcomponents and interactions will be provided.