Based upon users' basic demands and with gradual expansion of data analysis and case analysis, the functional demand and the system border are finally defined.
从用户的基本需求起步，经过数据分析、用例分析的逐步扩展，最终明确了功能需求和系统边界。
Based upon users' basic demands and with gradual expansion of data analysis and case analysis, the functional demand and the system border are finally defined.
从用户的基本需求起步，经过数据分析、用例分析的逐步扩展，最终明确了功能需求和系统边界。
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