特定领域的数据参考模型建模方法研究  

Research on domain-specific reference data model

作　　者：周惠群[1,2] 左春[3] 蔡玉宝[3] 

机构地区：[1]陕西科技大学计算机学院,陕西西安710021 [2]中国石化勘探公司南方分公司,四川成都610008 [3]中国科学院软件研究所,北京100080

出　　处：《计算机工程与设计》2009年第3期605-609,612,共6页Computer Engineering and Design

基　　金：国家863高科技研究发展计划基金项目(2003AA112050);北京市科委基金项目(D0106006040391)

摘　　要：针对领域内数据实体变化频繁,复用性低的问题,提出了特定领域数据参考模型的概念,它基于概念模型的形式,对领域内的通用数据模型进行说明和描述,成为领域内应用系统数据建模的基础。给出了领域数据参考模型的体系架构,它对整个模型进行了纵横向的划分以便作为不同程度的复用的基础。在概念模型构建时,提出了数据模型构建步骤,并引入了"维度","维度层次"和"事实"3个数据仓库中的概念,扩充了ER图中的属性定义,为构建稳定可复用的领域实体提供了有效的途径。Domain engineering has two difficulties in domain data entity. The first is the frequent variety, and the second is the low reuse level of data modeling. First, the conception of domain-specific reference data model （DSRDM） is provided to solve the two problems. The DSRDM is the description of the domain common data models in conception model form. It can become the basic of new application in the domain. Then, architecture of DSRDM is provided. The whole model is divided in horizontal direction and vertical direction. The architecture helps to improve the reuse level of data model In addition, the steps of building DSRDM is provided. And three conceptions of Data Warehouse such as ＂Dimension＂, ＂Dimension Hierarchy＂ and ＂Fact＂ are adopted in model building period. The three conceptions extend the semantic of ER diagram, and provide an effective approach for building steady and reusable domain entity.

关 键 词：领域 领域模型 数据建模 概念模型 维度 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]