概述:··························································3一、需求分析:··················································31.1用户需求··············································31.2业务流程分析··········································31.3信息需求分析··········································41.3.1资料收集·········································51.3.2事项(数据项)分析·······························61.4功能需求··············································7二、数据库概念模型设计:········································8初始ERD················································8改进ERD················································9三、数据库逻辑模型设计·········································103.1一般逻辑模型设计——ERD转换为一般关系模型···············103.2、具体逻辑模型设计········································12――把一般关系模型转换成具体DBMS支持的逻辑结构四、数据库物理设计与数据文件保护设计·················