................8
第三章系统分析..........................................................................................................................................9
3.1可行性分析................................................................93.2
系统需求分析..............................................................93.2.1系统功能需求...................................................................................................................103.2.2系统性能需求...................................................................................................................103.2.3系统可靠性和可用性需求...............................................................................................113.2.4系统出错处理需求...........................................................................................................113.3系统流程分析.............................................................113.3.1前台购物流程...................................................................................................................11
3.3.2
注册登录功能流程...........................................................................................................123.3.3商品
搜索流程...................................................................................................................133.3.4留言评论流程...................................................................................................................143.3.5订单处理流程...................................................................................................................153.3.6用户管理流程...................................................................................................................153.5系统数据流图.............................................................163.6前台购物流程图...........................................................163.7系统功能模块图...........................................................183.8系统E-R图...............................................................19
第四章系统设计.........................................................................................................................................20