XML-Based Data Integration Research

At the enterprise information construction process, departments are often required in the light of their own information needs and specific applications used different data model. These independent data sources are not necessarily consistent with the same data exchange formats, so data exchange between them are difficult, which created a lot of so-called "information isolated island." With enterprise information construction continual improvement, applications integration requirement is growing. However, the first question that the application integration has to face is data integration. How to achieve effective data integration, and data to end-users with a unified data types? It can directly influence the results of enterprise applications integration. The studies focused on data integration through the analysis of different data integration architectures and methods, and provide an improved architecture for this problem. It used XML as a Meta-data to describe local data model and through logic mapping to create object-oriented, XML described public middle layer metadata model. Based on this model, the article studied the template-driven local model automatically extract, mapping construction and so on. And the discussion focused on the relational database integration. Explore the query interface and query decomposition strategy. The use of object-oriented analyzes methods give the model a powerful description capacity. In order to provide effective aids to relationship data sources integration, this article describes a java application which automatic map local data sources model to export data model. The platform can automatically generate XML mapping model.