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A Progressive Metadata Building Methodology based on Data Visibility  

정동원 (고려대학교 컴퓨터학과)
신동길 (고려대학교 컴퓨터학과)
정은주 (고려대학교 컴퓨터학과)
이정욱 (건국대학교 컴퓨터·응용과학부)
서태설 (한국과학기술정보연구원)
백두권 (고려대학교 컴퓨터학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.9, no.6, 2003 , pp. 610-622 More about this Journal
Abstract
Metadata Registry was developed to dynamically manage metadata and to increase interoperability between various and heterogeneous metadata. The built metadata registry can be used as a standard guideline for creation of new databases and it provides a radical data integration mechanism. However, in the situation that an enormous databases must be integrated progressively, there is a limit to the existing metadata-based approach. In case that each database has no statistical information for its use rate and the restricted cost is given to us for a unit time, existing metadata-based approaches do not provide how to select some databases to be preferentially integrated and to build a metadata registry progressively, In this paper, we propose a methodology that can create progressively metadata registries in the case. The proposed methodology is based on data visibility and hierarchical metadata registry. We also describe the system that have been developed for applying the methodology to a real domain, and then described its results.
Keywords
ISO/IEC 11179; Data element; Metadata registry; Metadata; Metadata building methodology; Hierarchical metadata registry;
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