Updated Schneidewind model with single change-point by geometrical method

Many software reliability growth models assume that all faults have equal probability of being detected during the software testing process and the rate remains constant over the intervals between faults occurrences. But in fact, the fault detection rate may depend on the fault discovery efficiency, the fault detection density, the testing-effort, the inspection rate and so on, and may change with the software requirement and testing team. Change due to variations in resource allocation, defect density, running environment and testing strategy is called change-point. In this paper, we propose a updated Schneidewind model with a single change-point by geometrical method, and the experiment has been done to prove the method can be improve the reliability precision to some degree. At the same time, in this paper, we elaborate on the merits and limitations.