An Integration and Standardization of data from heterogeneous Sources

It is clear that in today¿s organizations, new and existing applications require access to data stored in several preexisting databases held at several local and remote locations. Therefore, a main criterion required by most complex organizations, is the provision of collaboration possibilities and information integration mechanisms among distributed, heterogeneous, and autonomous database systems. The development of an application provides interoperability and information integration among distributed systems, via the deployment of database standards and emerging Internet technologies. It is one of the most challenging approaches in the area of integrating heterogeneous information from autonomous sites. In this context, the work described in this paper focuses on the design and development of a Generic Information Exchange (GIE) System. The system supports a wide variety of applications with efficient means for their interconnection and interoperation, while preserving their heterogeneity, distribution, and full autonomy. An example of the interoperability problem is found in the healthcare domain, where each hospital, maintains its own database.