一种软件可靠性定量评估的方法

系统软件可靠性研究是当代科技前沿课题之一,是衡量软件质量最重要的指标,软件可靠性模型是软件可靠性定量评估的技术基础。他有2大类:可靠性预计模型和可靠性结构模型。分析2类模型中具有代表性的Nelson模型和硬软件复合系统结构模型,提出一种新的软件可靠性定量评估方法。该方法利用Nelson模型精确测定系统软件各模块的可靠性替代硬软件复合系统结构模型中的经验数据,解决了由于经验不足而无法应用硬软件复合系统结构模型的问题。该评估方法成功应用于科技部科技型中小企业技术创新基金资助项目“电参数分析管理系统”的软件开发中。

Method of Ration Assessing Software Dependability

The study of systematic software dependability is one of the front subjects of contemporary science and technology,and it is the most important index of judging software quality.The model of software dependability is the technological foundation of assessing software dependability.There are two major kinds of it:the expective model and structural model ofdependability.This thesis analyses the representative Nelson model and the hardsoftware structural model of the compound system in the two systems,it puts forward a new method of ration assessing software dependability.This method uses Nelson model to determine the dependability of each model of the software.It also substitutes the experience data of the hard-software structural model of the compound system.It solves the problem of unable use of the hard-software structural model of the compound system because of inadequate experience.The method succeeds in applying in the project which is supported by the small and medium-sized science and technology enterprises,that is the software development of "electric parameter analyze administrative system".