Semantic data integration model based on mixed ontology and mediator/wrapper

By researching on the semantics heterogeneous of data integration and data integration methods,we propose a semantic data integration model based on the mixed ontology and mediator/wrapper.Data element has been introduced into the construction of global ontology as the concept of domain data and automatic construction algorithm for the global ontology has been proposed.We design and implement a prototype system for this model.Operation of the system proved that this model can someway solve the problems of semantic heterogeneous in data integration domain,and it can also provide a reference for semantic data integration in various fields.