摘要
铁路客运决策支持系统是铁路信息化的必然产物,本文结合客票系统和18点速报提供的数据源,进行了客运决策支持系统的数据模型设计,并研究设计出了一套数据仓库系统设计可借鉴的数据模型设计方法,运用这些方法解决了维表和事实表的关系识别、事实表存储以及如何捕捉数据变化等几个难题。
Railway passenger transport decision support system (RPT-DSS) is the product of railway information. This paper designs the data model of RPT-DSS in the condition of data source applied by SMART system and 18 clock speed-report, study and innovate a suite of methods that can be used for designing data warehouse. The method deals with the difficulties include recognition of the relationship between dimension table and fact table, storage of fact table, catching the change of data source.
出处
《铁路计算机应用》
2001年第3期30-32,共3页
Railway Computer Application
