超市管理系统数据库设计说明书.doc

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目录

1 引言...........................................................................................2

1.1 编写目的.................................................................................................................................2

1.2 背景.........................................................................................................................................2

1.3 定义.........................................................................................................................................2

1.4 参考资料.................................................................................................................................2

2 外部设计...................................................................................3

3.1 概念构造设计.........................................................................................................................4

3.2 逻辑构造设计.........................................................................................................................5

3.3 物理构造设计.........................................................................................................................5

4 运用设计...................................................................................8

4.1 数据字典设计.........................................................................................................................8

4.2 平安保密设计.........................................................................................................................8

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