学校教材订购系统需求分析说明书

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1、学校教材订购系统软件需求规格说明书目录1.引言································································21.1编写目的··························································21.2项目背景··························································22.目标系统概述························································22.1目标········

2、······················································22.2用户的特点························································22.3假定和约束························································23.需求规定····························································23.1软件功能的规定····································

3、················23.1.1系统功能·······················································23.1.2数据流图·······················································33.1.3数据字典·······················································53.1.4E-R图·························································73.2对性能的规定··········

4、············································73.2.1精度···························································73.2.2时间特性要求···················································73.2.3可靠性·························································73.2.4灵活性·················································

5、········73.2.5数据管理能力要求···············································83.2.6故障处理要求···················································83.2.7其他专门要求···················································84.运行环境规定························································84.1设备································

6、······························84.2支持软件··························································84.3接口······························································84.4控制······························································81.引言1.1编写目的随着生活节奏的加快和网络的发展，教师、学生对教材的订购越来越重视，希望获取教材的过程简单，方便，快速。因而，

7、做一个好的学校教材订购系统是十分重要的。在本小组成员对系统进行了全面细致的分析后明确了该系统“做什么”，编写这份说明书的目的是将小组分析结果条理清晰的展示出来，它说明了本产品实现的各种功能以及各种功能的适用范围。使小组成员充分认识本系统的情况,方便以后更好的开展具体工作。本说明书主要提交给老师,小组成员和其他同学参考,以达到最终满足用户的要求，让用户满意。1.2项目背景项目名称：学校教材订购系统用户：学校教务科，教师，学