Schema Merging Study with Semantic Relationships of Schema Elements
Hongding Wang · Beijing Daxue Xuebao. Zirankexueban · 2006
Data integration has been a long-standing challenge for the database study communities, and construction global schemas is one of the most important problems in data integration research. This paper first analyzes the semantic relationships of schema elements, and based on those semantic relationships of schema elements, it proposes a method to schema merging with the results of schema matching. Different from previous methods, it extracts schemas from data dictionaries of data sources directly. Moreover, rules of schema elements merging are given corresponding to their semantic relationships. By using data dictionaries, not conceptual models, the method is more applicable and effective than the previous ones.