一、测试阶段概说人们往往有这样一种认识,一旦程序编写完成之后,就以为软件的研制和生产工作完成了,可是,大量的事实与这种认识正好相反,实际上研制一个软件产品的大部分工作量是花在程序编写出来之后,即在测试阶段和维护阶段,Yourdon曾提出一个估计:美国航宇局的阿波罗软件设计项目,有将近80%的经费花在测试阶段,据统计,测试阶段的工作量约占整个 First, the test phase overview People often have such a perception, once the program is completed, that the software development and production work completed, but a large number of facts and this understanding is the opposite, in fact, the development of a software product Most of the workload is spent writing the program, that is, in the testing phase and maintenance phase, Yourdon has put forward an estimate: NASA’s Apollo software design project, nearly 80% of the funds spent in the testing phase, according to statistics , The test phase of the workload of about the entire