软件可靠性综合模型的分析和研究  

Analysis and Research of a Synthesis Model for Software Reliability

作　　者：朱经纷[1] 徐拾义[1] 

机构地区：[1]上海大学计算机工程与科学学院,上海200072

出　　处：《计算机科学》2009年第4期181-184,共4页Computer Science

基　　金：国家自然科学基金项目(60473033)资助

摘　　要：软件可靠性是系统可信性的重要属性之一。首先讨论了传统软件可靠性模型的主要弱点,接着提出了一种新的软件可靠性估算模型。当前,传统的软件可靠性度量模型中并未涉及大多数软件的复杂性及测试用例的有效性,从而使得在评估软件可靠性时不够精确,甚至是错误的。因此,提出了一些改进软件可靠性度量的方法。这些方法的主要思想是将影响软件复杂性的因素和测试用例的有效性并入软件可靠性模型中,以便使得该模型能更精确地反映实际情况。最后,大量的实验结果也表明了该模型的合理性及有用性。Software reliability is one of the important attributions of dependable systems. We discussed the major weaknesses of the software reliability models used currently and then proposed a new model of software reliability estimation. For the time being, the assumptions that software reliability measurement does not address the complexity of most software and the effectiveness of test suite, resulting in inaccuracy or even incorrectness in evaluating the software reliability. Therefore, we proposed some strategies of improving the software reliability measurement. The central idea of the strategies proposed in this paper is to incorporate the influence factors of complexity of the software under test and the test effectiveness into the software reliability models so as to make the software reliability models more adequate and accurate to the real situation. Results from substantial experiments have shown the rationality and usefulness of the new model.

关 键 词：软件可靠性模型 软件复杂性 测试有效性 故障注入 可靠性度量 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]