Journal of Korea Society of Digital Industry and Information Management (디지털산업정보학회논문지)

Korea Society of Digital Industry and Information Management (디지털산업정보학회)
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A Study of Software Optimal Release Time for Based on Superposition NHPP Model

중첩 NHPP 모형에 근거한 소프트웨어 최적방출시기에 관한 연구

  • 김희철 (남서울대학교 산업경영공학과)
  • Received : 2010.07.22
  • Accepted : 2010.09.03
  • Published : 2010.09.30
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Abstract

Decision problem called an optimal release policies, after testing a software system in development phase and transfer it to the user, is studied. The applied model of release time exploited infinite non-homogeneous Poisson process. This infinite non-homogeneous Poisson process is a model which reflects the possibility of introducing new faults when correcting or modifying the software. The failure life-cycle distribution used superposition which has various intensity, if the system is complicated. Thus, software release policies which minimize a total average software cost of development and maintenance under the constraint of satisfying a software reliability requirement becomes an optimal release policies. In a numerical example, after trend test applied and estimated the parameters using maximum likelihood estimation of inter-failure time data, estimated software optimal release time. Through this study, in terms of superposition model and simply model, the optimal time to using superposition model release the software developer to determine how much could count will help.

Keywords

Acknowledgement

Supported by : 남서울대학교

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