Computing the Number of Calls Dropped Due to Failures

  title={Computing the Number of Calls Dropped Due to Failures},
  author={Kishor S. Trivedi and Dazhi Wang and D. Jason Hunt},
  journal={2010 IEEE 21st International Symposium on Software Reliability Engineering},
Defects per million (DPM), defined as the number of calls out of a million dropped due to failures, is an important service (un)reliability measure for telecommunication systems. Most previous research derives the DPM from steady-state system availability model. In this paper, we develop a novel method for DPM computation which takes into consideration not only system availability, but also the impact of service application as well as the transient behavior of failure recovery. We illustrate… CONTINUE READING
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