Predication of Software Reliability Based on Grey System

There are lots of factors influencing software reliability in course of developing software, so scientists have to omit minor factors and to preserve key factors. Furthermore, artificially simplify and limit the ways affecting the preserved factors, which is used as the basis to establish mathematic model and predict software reliability. As same as other software reliability models, there are also some assumptions or limitations in this paper. However, theses assumptions or limitations are originated from basic assumption of grey system. Most traditional software reliability models are derived from probability method, but grey system is not. Therefore, this paper will only make a comparison between our mathematic model derived by grey system and that derived by probability method. Finally, the result was that both models are limitary discrete monotone increasing exponential function. However, precision of reliability predication will be dependent on testing of bigger real cases for a long time. This paper, based on grey system, simply has put forward our viewpoint.