用于企业数据建模的域数据模型的研究

Research on domain data model used for enterprise data modeling

针对现有的通用数据模型与具体的应用结合不紧密的特点,提出了构造更贴近具体应用领域的域数据模型,用于解决MIS开发过程中,应用层面的数据访问控制的难题。提出并描述了数据域模型的概念,详细讨论了域模型的形式化表达、域关系运算和域运算等概念。

Because the existing data model can＇t work perfectly with given application,this paper brings forward a domain data model（DDM）.This paper explicates formalization expression and abstract structure of DDM.On the basis of these conceptions,this paper studies manipulation method of domain,relations between domains,domain relation operations and domain operations on DDM.