基于IFPUG功能点分析方法改进特征值因子的应用研究

Application of the Improved Eigenvalues Based on the IFPUG Function Point Analysis in Software Estimate System

论文阐述了功能点分析方法的计算步骤,并采用IFPUG分析方法对一个接近完成的软件开发项目进行了评估,并结合国内标准提出了改进后的系统特征值评估模型,用六个特性的参数来确定一个系统特征值,以此取代IFPUG功能点分析方法中的调整因子。结果表明:改进后的功能点分析方法在对所开发的软件项目的度量上具有更高的精确度,更接近项目开发的实际。

The calculation procedures of FPA have been discussed in this paper and IFPUG method has been applied to estimating a software developing program. Based on the domestic standards, an improved system eigenvalue assessment mod- el is proposed, with six parameters to determine a system eigenvalue instead of applying IFPUG function point adjustment factors. Results have shown that the improved function point analysis model has higher accuracy in the measurement of soft- ware proiects which is much closer to the actual project development.