投影寻踪Web软件复杂性度量.docVIP

基于投影寻踪的Web软件复杂性度量 摘 要:传统的软件复杂性度量方法主要是针对c/c++、ada等语言开发的非web应用。以面向对象的基于struts框架的web软件为研究对象,提出了适合于webstruts软件的3个方面的复杂性度量指标,并提出了一种基于带交叉算子人工鱼群和投影寻踪(pp)算法的web应用软件复杂性度量方法。把web软件多个复杂性度量指标综合成一维综合投影值,利用样本数据求解最佳投影方向,确定评价等级的综合投影值区间,根据测试样本综合投影值与区间值比较,获得综合评价结果。实例评价结果表明,所提方法具有较强的适用性和应用性。 关键词:软件复杂性度量;面向对象;struts框架;投影寻踪;交叉算子;人工鱼群算法  web software complexity metrics based on projection pursuit  zeng yi, hu xiaowei*, li juan ( college of computer science, chongqing university, chongqing 400044, china ) abstract: web software complexity metrics does play a very important role in the software development. the traditional software complexity metrics method mainly targets on the nonweb applications which use language like c/c++ and ada. this paper took objectoriented web software based on struts framework as research subject and put forward three complexity metrics suitable for the webstruts software. besides, this paper also proposed a method for computing web software complexity metrics based on artificial fish swarm algorithm (afsa) with cross operator and projection pursuit (pp) algorithm. after integrating multiple complexity metrics into onedimension comprehensive projection value, the optimized projection direction could be acquired through sample data. then the comprehensive projection value of evaluation grades could also be determined. according to the comparison between the comprehensive projection values of the testing samples and the interval of level, the comprehensive metrics result could be finally obtained. the example evaluation results prove the feasibility and effectiveness of the proposed method. key words: software complexity metric;objectoriented;struts frame;projection pursuit (pp);cross operator; artificial fish swarm algorithm (afsa)  0 引言 软件复杂性度量在软件开发中起着非常重要的作用,它可减少整个开发周期的费用,度量软件产品的可理解性,与软件的可靠性、可维护性等质量因素密切相关。围绕着软件复杂性,产生了很多的软件复杂性度量方法,传统的度量方法有代码行[1]、环形复杂性[2]、halstead的软件科学理论[3]等,面向对象的度量方法有ck度量[4]、mood度量[5]等,而且也出现了一些度量软件复杂性的工具,如国外