Study of the software size estimation model based on UML

This paper takes the excellent Function Point Analysis (PFA) method as the prototype. The development circumstance combines with Object-Oriented (OO) method. In the experiment of the implement section, the Unified Modeling Language (UML), which can integrate with class diagram and FPA, is chosen as a method. As a result, the proposed method for the effect of estimating function points (FP) has been improved through the verifying. Furthermore, the automatic estimation model, which is constructed from UML class diagram to FP, is put forward in this paper. The obtained results support the conclusion that automatic estimation of FP is designed and implemented, and a kind of Web Service is developed based on UML.