数据仓库元数据的界定与分类

基金项目: 国家自然科学基金资助项目：编号60074038

详细信息

DEFINFITION AND CLASSIFICATION METADATA FOR DATA WAREHOUSE

摘要: 元数据是数据仓库研究的热点，目前对元数据有多种定义方式，如：描述数据的数据，数据和信息之间的桥梁等，这些面向应用角度的定义，并不能真正表达元数据的内涵．本文从元数据和基础数据分离过程入手，研究元数据的定义和分类，对元数据的概念内涵进行深入探讨，提出广义元数据和狭义元数据的概念，扩展元数据的定义，克服面向应用角度定义元数据的不足．
- 元数据 /
- 数据仓库 /
- 广义元数据 /
- 狭义元数据
Abstract: As a hotspot of data-warehouse, there are several methods to define metadata,such as data about data,a bridge between data and information,these definitions were put forward, depending on different applications,and they can not express the significance of metadata. The paper began from studying the process that metadata was departed from underlying data,then the classification and definition of metadata were studied, at last we came up with the metadata in general sense and the metadata in narrow sense, these definitions overcome the shortcomings of the definition oriented special applications.
- metadata /
- data-warehouse /
- metadata in general sense /
- metadata in narrow sense

[1]	J Milstead, S Feldman. MeatData Projects & Standards. ONLINE 1999,Jan/Feb 33～38
[2]	Working Group Four-Metadata and Data, URL http://www.nml.org/HostedByNTA/MassiveDigitalDataSystems/MDDSP roceedings/44.html, Feb. 1-2,1994,Reston,Va
[3]	Jeff Rothenber, Metadata to Support Data Quality and Longevity. The First Proceeding of Metadata,1996
[4]	Richard D. Holowczak and Wen_syan Li, A Survey on Attribute Correspondence and Heterogeneity Metadata Representation, The Fist Proceeding of Metadata, 1996
[5]	M Drewry, H Conover, S McCoy. Metadata:Quality vs. Quantity. The Second Proceeding of Metadata, 1997
[6]	K Brigitte, G. Olvier. Models for Metadata or Metamodels for Data. The Second Proceeding of Metadata,1997
[7]	Epaminonds Kapetanios and Ralf Kramer, A Knowledge-Based System Approach for Scientific Data Analysis and the Notion of Metadata, The First Proceeding of Metadata,1996
[8]	O Mangisengi, A M Tjoa. Metadata for Data Warehousing Using Extended Relational Models, The Second Proceeding of Metadata, 1996
[9]	E Kapetanios, L Schneider. A Conceptual Framework for the Definition and Implementation of a metadata (Knowledge) Base for Atmospheric Research The Second Proceeding of Metadata, 1997
[10]	Epaminondas Kapetanios, A Knowledge-Based System Approach for Scientific Data Analysis and the Notion of Metadata, Internet Resource The First Proceeding of Metadata, 1997
[11]	陈文伟.数据仓库中的元数据. http://mumriverhdpu.edu.cn/doc/cto/jsp001com/250.html, 1997