软件的可靠性设计问题目前正受到人们越来越多的重视。本文以一个测试软件为例谈谈运用可靠性原理进行设计、调试的方法和效果。文章首先介绍了测试系统的设备配置、被测对象情况和特殊的测试要求,特殊要求主要体现在对软件的可靠性要求“高”上。围绕着可靠性问题,文章首先叙述了采纳的软件可靠性的几种含义——统计观点、结实观点、可靠观点及经济观点等,接着介绍了提高软件可靠性的四种设计原理——故障避免、故障检测、故障校正和容错。本文采用的是故障避免和差 Software reliability design issues are now receiving more and more attention. In this paper, a test software as an example to talk about the use of reliability principles of design and debugging methods and effects. The article first introduces the equipment configuration of the test system, the situation of the tested object and special test requirements. The special requirements are mainly reflected in the “high” requirements on the reliability of the software. Around the issue of reliability, the article first describes several implications of software reliability adopted - statistical, solid, reliable, and economic, and then introduces four design principles for improving software reliability - failure avoidance , Fault detection, fault correction and fault tolerance. This article uses the fault avoidance and poor