目录
药品管理系统需求分析与数据库设计说明.....................................................................................1
1 引言..................................................................................................................................................3
1.1 编写目的.................................................................................................................................3
1.2 背景.........................................................................................................................................3
1.3 定义.........................................................................................................................................3
1.4 参考资料.................................................................................................................................4
2 任务概述..........................................................................................................................................4
2.1 目标.........................................................................................................................................4
2.2 用户的特点.............................................................................................................................4
2.3 假定和约束.............................................................................................................................5
3 需求规定..........................................................................................................................................5
3.1 对功能的规定.........................................................................................................................5
3.2 对性能的规定.........................................................................................................................7
3.2.1
精度
.................................................................................................................................. ..7
3.2.2
时间特性要求
............................................................................................................. .......7
3.2.3
灵活性
.............................................................................................................................. ..8
3.3 输人输出要求.........................................................................................................................8
3.4 数据管理能力要求.................................................................................................................8
3.5 故障处理要求.........................................................................................................................8
3.6 其他专门要求.........................................................................................................................9
4 结构设计........................................................................................................................................10
4.1 概念结构设计.......................................................................................................................10
4.2 逻辑结构设计.......................................................................................................................12
4.3 物理结构设计.......................................................................................................................14
5 运用设计（可不写）....................................................................................................................14
5.1 数据字典设计.......................................................................................................................14
5.2 安全保密设计.......................................................................................................................15
评论1
最新资源