Research On Reliability Assurance And Measurement Of Military Software

With the rapid development of computer systems technology, widespread use of application software has been infiltrated into all areas of our national growth, especially for military applications of China's national defense strength is playing an increasingly important role.In this article, we propose a stochastic model called the Gompertz software reliability model based on non-homogeneous Poisson processes. Since the Gompertz curve is a deterministic function, the curve cannot be applied to estimating software reliability which is the probability that software system does not fail in a prefix time period. The proposed model can be derived from the statistical theory of extreme-value, and has a similar asymptotic property to the deterministic Gompertz curve. Also, we develop an EM algorithm to determine the model parameters effectively. In numerical examples with software failure data observed in real software development projects, we evaluate performance of the Gompertz software reliability model in terms of reliability assessment and failure prediction.