目 录
1 绪论 .............................................................................................................................................1
1.1 问题定义及内容简介 .......................................................................................................1
1.2 研究背景与研究意义 .......................................................................................................1
1.2.1 本课题研究背景 .....................................................................................................1
1.2.2 本课题研究意义 .....................................................................................................3
1.3 课题调研与可行性分析 ...................................................................................................3
1.3.1 课题调研 .................................................................................................................3
1.3.2 可行性分析 .............................................................................................................5
1.4 各章内容介绍 ....................................................................................................................6
2 系统需求分析 .............................................................................................................................8
2.1 系统的性能要求 ...............................................................................................................8
2.2 系统功能需求分析 ...........................................................................................................8
2.2.1 功能划分 .................................................................................................................8
2.2.2 功能描述 .................................................................................................................8
2.3 用例模型 .........................................................................................................................10
2.3.1 普通用户用例图 ....................................................................................................10
2.3.2 学生用例图 ............................................................................................................10
2.3.3 教师用例图 ............................................................................................................11
2.4 活动图 .............................................................................................................................13
2.5 数据流图 .........................................................................................................................14
2.6 数据字典 ..........................................................................................................................15
3 系统设计 ....................................................................................................................................18
3.1 系统总体结构设计 ..........................................................................................................18
3.2 系统数据模型设计 ..........................................................................................................18
3.2.1 E-R 图.....................................................................................................................18
3.2.2 关系模型 ...............................................................................................................20
3.2.3 数据库表的设计 ...................................................................................................21
3.3 系统开发与运行环境的确定 ..........................................................................................24
3.3.1 系统开发环境 .......................................................................................................24
3.3.2 系统运行环境 .......................................................................................................24
3.4 系统实现的若干关键技术 ..............................................................................................25
3.4.1 UML 建模技术 ......................................................................................................25
