Database management systems(DBMS) are widely used in most of business information systems, but have various hardware and software platforms. It means that there are difficulties of developing applications which require to access existing multiple hete...
Database management systems(DBMS) are widely used in most of business information systems, but have various hardware and software platforms. It means that there are difficulties of developing applications which require to access existing multiple heterogeneous DBMS. Developers have to write different applications for each system environments and rebuild all applications whenever the system environment has changed. In this paper, we propose 3-tier system model based on the CORBA distributed object framework in order to solve the above problem and enhance the usability of existing codes. We demonstrate the usefulness of the proposal model by developing an integrated catalog-searching module in on-line shopping mall system and evaluated the system performance.