As the basis of the high-level abstraction of the software system and subsequent development

testing and maintenance

the complexity of SA has a far-reaching impact on the system. According to the characteristics of CN and SA

the measurement and control method of SA complexity by using CN is proposed. This paper first introduces the method of complex networks and undirected and unweighted network

on this basis

the measurement of SA complexity is proposed through the degree of component

degree distribution of component

clustering efficient of SA

average path length of SA

modularity of SA

etc

then the complexity control method of SA and the reference range of the specific measurement attribute value are also given. Finally

the measurement method and control method of the SA complexity are verified by an example. The results shows that this method can metric and control the complexity of software system well based on strict formalization

and provides support and reference for subsequent development and maintenance of SA.