软件需求分析：在软件的整个生命周期中，首先是软件计划期，接着是软件开发期，软件需求分析是软件开发的第一个阶段，也是关系到软件开发成功与否的关键一步。-Software Requirements Analysis: In the software throughout the life cycle, the first software planning period, followed by software development phase, software requirements analysis is the first stage of software development is also related to the success of software development, a key step.