需求分析工具用于软件工程的需求分析阶段，它的基本功能是辅助系统分析人员对开发的系统需求进行分析，最终得到由数据流图和数据字典组成的完整而准确的软件需求规约。

Its basic function is to assist system analyst to analyze the requirement of the developed system, and to get an intact and accurate software requirement specification which is made up of Data Fl.

youdao

需求分析工具用于软件工程的需求分析阶段，它的基本功能是辅助系统分析人员对开发的系统需求进行分析，最终得到由数据流图和数据字典组成的完整而准确的软件需求规约。

Its basic function is to assist system analyst to analyze the requirement of the developed system, and to get an intact and accurate software requirement specification which is made up of Data Fl.

youdao