Data service virtualization mechanism for dynamic data integration

We address the problem of data service virtualization mechanization, which was proposed for dynamic data integration. Business experts are expected to define virtual data service representing general business function according to the specific business specification and the domain ontology. All data service instances having the same function as the virtual data service are converged into a single convergent data service. When a convergent data service is invoked, it will execute one or more data service instances according to different convergent policies and merges the set of results from the local data services as single. Business users use virtual data services to design the integration applications. The service virtualization mechanization improves the flexibility and dynamic adaptability of the data integration applications.