The Schneidewind software reliability model revisited

A software reliability model based on a nonhomogeneous Poisson process (NHPP) was proposed by N.F. Schneidewind (Sigplan Notices, vol.10, p.337, 1975). Since then, many other NHPP models have been suggested and studied by various authors. The authors show that several NHPP models can be derived based on the general assumptions made by Schneidewind. Also, they note that in the original paper, there are several interesting approaches worth further consideration. To mention a few, Schneidewind modelled both the software correction process and the software detection process. Methods of weighted least squares were adopted together with the software reliability forecasting based on previous measurements. In this paper, the Schneidewind model is revisited and some further research result are presented