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A Study on the Method for Solving Data Heterogeneity in the Integrated Information System  

Park, Seong-Jin (한신대학교 컴퓨터공학부)
Park, Sung-Kong (고려대학교 대학원 컴퓨터학과)
Park, Hwa-Gyoo (순천향대학교 보건행정학과)
Publication Information
Journal of Information Technology Services / v.7, no.4, 2008 , pp. 87-99 More about this Journal
Abstract
As the technologies for telecommunication have been evolving, more enhanced information services and integrated information systems have been introduced, which can manage a variety of information from the heterogeneous systems. The major obstacle for the integrated information systems is the integrating heterogeneous databases in the systems and the heterogeneity problems can be classified into the structural and data heterogeneities. However, the previous researches have mainly highlighted into the solving structural heterogeneity problems. This paper identifies the data heterogeneity problems for multi-database schema integrations and proposes a new solving method. We analyze the semantics equivalence in data values based on the functional dependency, primary and candidate keys, and present a procedural solution of data heterogeneity in the perspective of the concept of attribute equivalence, integration key and conceptual integration table.
Keywords
Integrated Information System; Multidatabase; Schema Integration; Data Heterogeneity;
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