考试系统需求分析，写的很详细顶层数据流，数据字典都很完整，适合软件工程的理论分析，作为学写需求分析报告的模版。-examination system needs analysis, wrote a very detailed top-level data flow, data dictionaries are integrity, Software Engineering for the theoretical analysis wri

考试系统需求分析，写的很详细顶层数据流，数据字典都很完整，适合软件工程的理论分析，作为学写需求分析报告的模版。-examination system needs analysis, wrote a very detailed top-level data flow, data dictionaries are integrity, Software Engineering for the theoretical analysis wri