目 录
摘 要...................................................................................................................................................I
Abstract ....................................................................................................................................................II
一、引言 ..................................................................................................................................................1
（一）项目开发的背景 ..................................................................................................................1
（二）项目开发的意义 ..................................................................................................................1
二、可行性分析及总体设计原则 ..........................................................................................................2
（一）可行性分析 ..........................................................................................................................2
1．技术可行性 ................................................................................................................................2
2．经济可行性 ................................................................................................................................2
3．社会可行性 ................................................................................................................................2
（二）总体设计原则 ......................................................................................................................3
三、系统分析 ..........................................................................................................................................4
（一）业务流程分析 ......................................................................................................................4
（二）数据流图 ..............................................................................................................................5
（三）数据字典 ..............................................................................................................................8
四、系统设计 ........................................................................................................................................11
（一）系统功能设计 ....................................................................................................................11
（二）系统数据库设计 ................................................................................................................12
1．概念结构设计 ..........................................................................................................................12
2．数据库表设计 ..........................................................................................................................15
（三）系统开发工具与开发模式的选择 ....................................................................................17
1．系统开发工具 ..........................................................................................................................17
2．系统设计模式 ..........................................................................................................................18
五、系统实现 ........................................................................................................................................20
（一）后台模块 ............................................................................................................................20
1．登录 ..........................................................................................................................................20
2．注册用户管理界面 ..................................................................................................................22
3．留言管理界面 ..........................................................................................................................22
4．消防新闻管理界面 ..................................................................................................................22
