需求文档-v5.2-终板1

0 修订历史 ..................................................................................................................................................2

1 概述.......................................................................................................................................................4

2 系统功能需求.....................................................................................................................................4

2.3.2 用例描述.............................................................................................................................6

2.4 功能模块 3-查询模块 .............................................................................................................7

2.4.1 用例图 .................................................................................................................................7

2.4.2 用例描述.............................................................................................................................7

2.5 功能模块 4-购物模块 .............................................................................................................9

2.5.1 用例图 .................................................................................................................................9

2.5.2 用例描述.............................................................................................................................9

2.6 功能模块 5-系统管理模块..................................................................................................10

2.6.1 用例图...............................................................................................................................10

2.6.2 用例描述 ..........................................................................................................................10

3.2.1 可恢复性 ..........................................................................................................................13

3.2.2 可维护性 ..........................................................................................................................13

3.3 性能 ............................................................................................................................................13

3.3.1 响应时间 ..........................................................................................................................13

3.3.2 吞吐量...............................................................................................................................13

3.3.3 并发用户数......................................................................................................................13

3.4 可支持性...................................................................................................................................14

3.4.1 可适应性 ..........................................................................................................................14

3.4.2 可配置性 ..........................................................................................................................14

4 系统接口 ...........................................................................................................................................14

6.1 参考资料...................................................................................................................................15

6.2 辅助工具...................................................................................................................................15