Using NHPP model for ERP software module reliability growth

Enterprise systems like ERP (Enterprise Resource Planning), have gained great significance for most companies on an operational as well as a strategic level. Failures during qualification phase (before delivery) or more often changes in existing ERP modules are stochastic processes and it is important for developers (or users) to predict reliability of software product they are developing (or using) in order to accept that as business risk. In this article we have tried to show how the Non Homogeneous Poisson Process (NHPP) model can be applied in reliability prediction (reliability growth) for one ERP module.