A state- and time-dependent error occurrence-rate software reliability model with imperfect debugging

In this paper, assuming a state- and time-dependent software failure rate and imperfect debuggings, we develop a simple binomial model for software error occurrences. Maximum likelihood estimates for the required parameters of this model are also derived. It is established that the Jelinski-Moranda, imperfect debugging and non-homogeneous Poisson process models are all special cases of ours.