Hybrid Integration Approach for Heteregenous Information Sources: Applied to Medical Resources and Patients Medical Documents

The goal of this research is to promote the establishment of an information system to provide to the Internet users the quality information on health and medicine related to the Patient Medial Documents (PMD). This information are extracted from several certified heterogeneous sources of the health localized dynamically. In addition, all the data of the patients and the information relating to any medical activity (operation, consultation, analysis, radiology, etc..) are stored in Data warehouse. These Data warehouse are distributed over several regions according to the geographical distribution location of the patients. Such a functional architecture will take us to deal with two integration methodologies of the heterogeneous information systems most recommended. The Data warehouse method used to store the information related to the PDM and the virtual integration method used to retrieve the health and medicine scientific information. In this article, we propose a new hybrid approach of integrating the heterogeneous information systems between Data warehouse and the virtual mediation. We develop a mechanism rewriting request and an algorithm adapted for updates of Data warehouse based on the mobile agents.