3.4.2 用例描述.............................................................................................................................9
3.5 功能模块 4-购物模块...........................................................................................................10
3.5.1 用例图...............................................................................................................................10
3.5.2 用例描述 ..........................................................................................................................10
3.6 功能模块 5-系统管理模块..................................................................................................11
3.6.1 用例图...............................................................................................................................11
3.6.2 用例描述 ..........................................................................................................................11
3.7 功能模块 6-统计模块...........................................................................................................13
3.7.1 用例图...............................................................................................................................13
3.7.2 用例描述 ..........................................................................................................................13
4 系统非功能需求..............................................................................................................................14
4.1 可用性........................................................................................................................................14
4.2 可靠性........................................................................................................................................14
4.2.1 可恢复性 ..........................................................................................................................14
4.2.2 可维护性 ..........................................................................................................................14
4.3 性能 ............................................................................................................................................14
4.3.1 响应时间 ..........................................................................................................................14
4.3.2 吞吐量...............................................................................................................................14
4.3.3 并发用户数......................................................................................................................15
4.4 可支持性...................................................................................................................................15
4.4.1 可适应性 ..........................................................................................................................15
4.4.2 可配置性 ..........................................................................................................................15
5 系统接口 ...........................................................................................................................................15
5.1 用户界面...................................................................................................................................15
5.2 硬件接口...................................................................................................................................15
5.3 软件接口...................................................................................................................................15
5.4 通信接口...................................................................................................................................15
6 术语表................................................................................................................................................17
7 附录 ....................................................................................................................................................17
7.1 参考资料...................................................................................................................................17
7.2 辅助工具...................................................................................................................................17