Study on Method of Data Exchange in Heterogeneous Data Sources Considering Type Information
Bo Guo · 2008
In order to ensure the veracity of the process of schema integration and information exchange,both the structs conflicts and type differences of data corresponds to schema structs should be considered in the process of schema integration of heterogeneous data source,based on considering the constraints of different model language and compound object type,formalize the type hierarchy system,base on the common type hierarchy system content definition,taking type constraints and compound object type into account,we give the construction method of inter model type hierarchy system,build the mapping relationship between heterogeneous schema type hierarchy system and inter model type hierarchy system,which has a smaller searching space,and a larger scope of type comparing to other type matching algorithm.