Generalized Software Reliability Model Considering Uncertainty and Dynamics: Model and Applications

Kiyoshi Honda*, Hironori Washizaki, Yoshiaki Fukazawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Today's development environment has changed drastically; the development periods are shorter than ever and the number of team members has increased. Consequently, controlling the activities and predicting when a development will end are difficult tasks. To adapt to changes, we propose a generalized software reliability model (GSRM) based on a stochastic process to simulate developments, which include uncertainties and dynamics such as unpredictable changes in the requirements and the number of team members. We assess two actual datasets using our formulated equations, which are related to three types of development uncertainties by employing simple approximations in GSRM. The results show that developments can be evaluated quantitatively. Additionally, a comparison of GSRM with existing software reliability models confirms that the approximation by GSRM is more precise than those by existing models.

Original languageEnglish
Pages (from-to)967-993
Number of pages27
JournalInternational Journal of Software Engineering and Knowledge Engineering
Issue number6
Publication statusPublished - 2017 Aug 1


  • Software reliability models
  • fault prediction
  • project management

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Computer Graphics and Computer-Aided Design
  • Artificial Intelligence


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