说明：  四、概要设计说明书 1．引言 2 1.1编写目的 2 1.2项目背景 2 1.3定义 2 1.4参考资料 2 2．任务概述 3 2.1目标 3 2.2运行环境 3 2.3需求概述 3 2.4条件与限制 3 3．总体设计 3 3.1处理流程 3 3.2总体结构和模块外部设计 3 3.3功能分配 3 4．接口设计 3 4.1外部接口 3 4.2内部接口 3 5．数据结构设计 3 5.1逻辑结构设计 3 5.2物理结构设计 3 5.3数据结构与程序的关系 3 6．运行设计 3 6.1运行模块的组合 3 6.2运行控制 3 6.3运行时间 3 7．出错处理设计 3 7.1出错输出信息 3 7.2出错处理对策 3 8.安全保密设计 3 9.维护设计 3
(4, the outline design of a brochure. Introduction 2 1.1 2 1.2 purpose of the preparation of project definition Background 2 1.3 2 1.4 2 2 references. Tasks outlined three goals 3 2.1 2.2 3 2.3 operating environment needs outlined three conditions and limitations 2.4 3. Design 3 3.1 3 3.2 handling process architecture and modular design of the external distribution function 3 3.3 3 4. Interface Design Interface 3 4.1 3 4.2 external interfaces 5. Data Structure Design Logic 3 5.1 3 5.2 physical design of structural design three 5.3 data structures and procedures, the relationship between 6. Operation design module running 3 6.1 3 6.2 mix Operation Control running time 3 6.3 3 7. Design error handling error output 3 7.1 3 7.2 wrong information Treatment 8. Security Design 9. Maintenance Desig)