Multi source Heterogeneous Data Integration Technology and Its Development
With the improvement in the level of social information, data has become basic, strategic resources, which represents the advanced productive forces and core competitiveness. How to share heterogeneous data highly and effectively, achieve effective integration of information system, make full use of vast amounts of data resources, reduce duplication of data collection and reduce administrative costs, so that improve the utilization of data is a major challenge faced by data managers. Wherein the effective data integration is one important way to solve the problem. This paper describes the basic concepts of data integration and development proceed, summarizes the principles and methods of the current mainstream data integration technologies, including XML technology, CORBA technology, middleware technology. And discussion and analysis of the key issues in the field of data integration, and future research directions to do a more thorough discussion.