The Research and Implementation of Ontology-based Heterogeneous Data Integration Middleware

In order to deal with the most serious problem among heterogeneous data source-semantic heterogeneity,we incorporate ontology into a traditional middleware.By constructing a domanial ontology,a uniform conceptive model is provided to every local data source.The semantic heterogeneity between overall ontology and local ontology could be settled by establishing the mapping between them.In this subject we use the way of combining automatic mapping and semi-automatic mapping to generate mapping relations innovatively.And an algorithm is given here.As a result,this way will provide an effective solution to the automatic integration of massive data.