Data Interchanged for Heterogeneous Database by Using XML Technology Through Web Services

[[abstract]]In the well-established information system, it will face the impact of integrating heterogeneous database systems in general when a new system is implemented. When the requirement for integrating the new system with old system or heterogeneous databases can be met, the administrator or organization must face to choose either rebuilding a new system or updating an existing system. The administrative organization of the mid-size university is representative for this research study. It is attempted to propose a feasible research structure to integrate either new-old systems or heterogeneous databases. By using the XML Web Service, it will provide the most benefit method for data exchanging among the existed systems and new implemented systems under heterogeneous databases environment. This research is based on a standard XML for data exchanging. By using Web Service of 3 tier structures, it will achieve the consistency among different systems through data integrating