概述：··························································
3需求分析：
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31．1用户需求
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31．2业务流程分析
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31．3信息需求分析
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41．3．1资料收集
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51．3．2事项
〔数据项〕分析·······························
61．4功能需求
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7二、数据库概念模型设计：
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8初始 ...