Research on the evolving model of software product warranty network under outsourcing

This paper based on the theory and method of product warranty, applies complex networks which is one of the important research tools of complex system to software outsourcing network, and establishes a dynamic evolving model of software outsourcing product warranty network, which takes into account both vertex fitness and the upper limit of vertex weight. By the numerical simulation, the distributions of vertex weight and link weight of the network are studied. The result which obeys the scale-free distribution demonstrates that in the software outsourcing product warranty network, large numbers of software enterprises only possess fewer assuring relationships with others, while a few core enterprises own lots of assuring relationships. These core enterprises play a critical role in the network and directly affect the stability and development of the network.