针对数据仓库多维数据PIM建模问题,对多维数据模型维和事实进行了定义。在UML(Unified Modeling Language)扩展的基础上,提出了与多维模型相关的八个版类,从而可以对数据仓库中PIM模型的各种情况进行图形化描述。最后基于某钢铁企业采购系统的采购价格差异分析主题进行了建模。
In light of the multidimensional data PIM modelling in data warehouse,firstly,the dimension and the fact of multidimensional data model were defined.Secondly,on the basis of UML(Unified modelling language) Profile extension,eight edition classes relating to multidimensional model were put forward,which could describe all kinds of situation in PIM model of data warehouses with diagram.Finally,the theme of purchasing prices difference analysis in procurement systems of an iron and steel enterprises was modelled.