Accession Number:

ADA275376

Title:

Dependability and Performability Analysis

Descriptive Note:

Contract rept.

Corporate Author:

INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Report Date:

1993-11-01

Pagination or Media Count:

30.0

Abstract:

In this tutorial, we discuss several practical issues regarding specification and solution of dependability and performability models. We compare model types with and without rewards. Continuous-time Markov chains CTMCs are compared with continuous-time Markov reward models MRMS and generalized stochastic Petri nets GSPNs are compared with stochastic reward nets SRNs. It is shown that reward-based models could lead to more concise model specification and solution of a variety of new measures. With respect to the solution of dependability and performability models, we identify three practical issues largeness, stiffness, and non-exponentiality, and we discuss a variety of approaches to deal with them, including some of the latest research efforts.

Subject Categories:

  • Statistics and Probability
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE