目录
前言 ...........................................................................................................................................................1
一、系统概述 ...........................................................................................................................................1
（一）行业现状分析 ...........................................................................................................................1
（二）企业现状分析 ...........................................................................................................................3
（三）实施电子商务的背景、原因或必要性...................................................................................4
二、系统设计的可行性分析 ...................................................................................................................6
（一）系统性能要求 ...........................................................................................................................6
（二）系统可行性分析 .......................................................................................................................7
三、系统设计的目标 ...............................................................................................................................8
（一）设计的总体目标： ...................................................................................................................8
（二）设计的阶段目标： ...................................................................................................................8
四、系统功能需求分析 ...........................................................................................................................8
五、系统表达层设计 ...............................................................................................................................9
（一）网站 LOGO 设计........................................................................................................................9
（二）主页的设计 .............................................................................................................................10
（三）用户的登录页 .........................................................................................................................11
（四）用户注册 .................................................................................................................................12
（五）后台管理系统页面 .................................................................................................................12
（六）商品查询 .................................................................................................................................13
（七）商品添加 .................................................................................................................................14
六、系统逻辑层设计 .............................................................................................................................14
（一）系统业务流程设计 .................................................................................................................14
（二）数据流程设计 .........................................................................................................................15
（三）数据字典 .................................................................................................................................18
（四）决策树和决策表 .....................................................................................................................21
（五）系统功能结构设计 .................................................................................................................22
七、系统数据层设计 .............................................................................................................................23
（一）概念模型设计 .........................................................................................................................23
（二）逻辑模型设计 .........................................................................................................................27
八、功能实现代码 .................................................................................................................................31
（一）后台管理人员登陆功能 .........................................................................................................32
后台登录代码 .........................................................................................................................................32
（二）查询功能 .................................................................................................................................33
后台查询代码 .........................................................................................................................................33
