在线考试系统概念设计说明书在线考试系统概念设计说明书...............................................11. 引言..................................................................31.1 编写目的.........................................................31.2 项目背景.........................................................31.3 术语及缩略语定义.................................................31.4 参考资料.........................................................41.5 目标.............................................................41.6 运行环境.........................................................41.7 需求概述.........................................................51.8 限制描述.........................................................52. 总体设计..............................................................62.1 基于设计概念和处理流程...........................................62.2 系统总体结构和模块外部设计.......................................72.3 功能分配.........................................................83. 接口设计.............................................................153.1 外部接口........................................................153.2 内部接口........................................................154. 数据结构设计.........................................................154.1 逻辑结构设计....................................................164.2 物理结构设计....................................................184.3 数据结构与程序的关系............................................185. 运行设计.............................................................195.1 运行模块的组合..................................................195.2 运行时间........................................................205.3 出错输出信息....................................................205.4 出错补救措施....................................................205.5 出错补救措施....................................................206. 安全保密......................
