摘要
需求分析是数据库设计的重要阶段.在充分考虑用户需求的基础上分析了与旅客列车数据库相关的信息,对旅客列车开行方案决策支持系统进行了数据库需求分析,形成了该系统的数据流程图和数据字典,并进行了相应的概要设计,从而为该系统的数据库设计乃至后面的系统开发打下了良好的基础.
Requirement analyzing is an important phrase of database design. Based on a full consideration of the nser＇s requirements, an analysis on the informatinn related to the database is given. A requirement analysis of the decision supporting system of passenger train, its data flow diagram, data dictionary and general design an formed which has laid a good foundation for the specific database designing and later system development.
出处
《交通运输系统工程与信息》
EI
CSCD
2006年第1期60-63,共4页
Journal of Transportation Systems Engineering and Information Technology
关键词
旅客列车开行方案
需求分析
数据流程图
数据字典
Passenger train plan
Requirement analyzing
Data flow diagram
Data dictionary
