类设计质量评估方法的研究

摘要

This paper introduced a metric suite of C&K suggested by Chidamber and Kemerer in detail,and combined with grey relational analysis theory.A methodology for classes design quality assessment based on a metric suite of C&K and grey theory was proposed.Firstly,this methodology provides the best class design standards according to the thresholds of C&K and the definition of acceptable class.The grey relational analysis is carried out between the best class design standards and all classes of an object-oriented program,and the worst class will be found.This methodology can help the software designers to find out the flawed classes in the early phases of the software life cycle,thereby improving the reliability and maintainability of software systems.%详细介绍了C&K度量方法,结合灰色关联分析的相关理论,提出了一种基于C&K度量方法和灰色关联分析的类设计质量评估方法.依据C&K度量阈值及可接受类的定义,可以推导出面向对象程序设计中的最佳类设计标准.将各个类与最佳类设计标准进行灰色关联分析,从而评估类设计质量的优劣.该方法为程序设计人员提供了类设计质量优劣的判定依据,并保证其在软件生命周期的早期阶段及时发现设计质量低劣的类并做相应的处理,避免后期开发的软件产品出现故障,能显著提高软件产品的可靠性和可维护性.