一种基于依赖性分析的类内聚度度量方法.pdfVIP

1000-9825/2003/14(11) 1849 ©2003 Journal of Software 软 件 学 报 Vol.14, No.11 一种基于依赖性分析的类内聚度度量方法 1 , 2 1 ,2 , 3 + 陈振强 , 徐宝文 1(东南大学 计算机科学与工程系, 江苏 南京 210096) 2 (江苏省 软件质量研究所, 江苏 南京 210096) 3 (武汉大学 软件工程国家重点实验室, 湖北 武汉 430072) An Approach to Measure ment of Class Cohesion Based on Dependence Analysis CHEN Zhen-Qiang1,2 , XU Bao-Wen1,2,3+ 1(Department of Computer Science and Engineering, Southeast University, Nanjing 210096, China) 2 (Jiangsu Institute of Software Quality, Nanjing 210096, China) 3 (State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, China) + Corresponding author: Phn: 86-25-3793977 ext 1, Fax: 86-25-3689779, E-mail: bwxu@ /people/bwxu Received 2002-09-25 ; A ccepted 2003-06-19 Chen ZQ , Xu BW. An approach to measure ment of class cohesion based on dependence analysis. Journal of Software, 2003,14(11):1849~1856. /1000-9845/14/1849.htm Abstract : Cohesion represents the tight degree of the components of a software module. In an OO environment, the cohesion is mainly about the tight degree among the attributes and methods in classes. So it is urgent to fully explore the tight degree among the attributes and methods in classes of the detailed applications in order to make up the deficiency of the existing methods. The relationships between attributes and attributes, attributes and methods, methods and methods of a class, and the properties of these relationships are discussed. According to these properties, a new approach is proposed to measure the cohesion of a class based on a dependence analysis. This method is proved to satisfy the properties that a good measurement should have. The approach overcomes the limitations of the previous class cohesion measures, which consider only one or two of the three relationships in a class. The result of the approach provides a guideline for evaluating th