学校教材订购系统需求分析说明书.pdfVIP

子曰:“知者不惑，仁者不忧，勇者不惧。”——《论语》

学校教材订购系统

软件需求规格说明书

目录

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

1.1编写目的··························································2

1.2项目背景··························································2

2.目标系统概述························································2

2.1目标······························································2

2.2用户的特点························································2

2.3假定和约束························································2

3.需求规定····························································2

3.1软件功能的规定····················································2

3.1.1系统功能·······················································2

3.1.2数据流图·······················································3

3.1.3数据字典·······················································5

3.1.4E-R图·························································7

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可靠性·························································7

3.2.4灵活性·························································7

3.2.5数据管理能力要求···············································8

3.2.6故障处理要求···················································8

3.2.7其他专门要求···················································8

4.运行环境规定························································8

4.1设备··············································