A Simplified Integration for Heterogeneous Database Application System

摘要

The database application system (DBAS) is widely used in diverse domains, and plays an extremely important role. However, the growth of organizations invariably leads to creation of multiple heterogeneous DBAS. How to effectively integrate these heterogeneous systems has become a hot spot of integration field. The existing integrated methods are mainly aimed at the layer of database system. For the shortages of those methods, this paper mainly focus on the integration method at the layer of application. This paper analyses DBAS from a new perspective, in which an access control layer is separated from the application layer. A new method called as "invasion" access control is put forward, and a simplified integration method (SIM) of heterogeneous DBAS is put forward based on the access control method. The SIM method provides a fast integration solution of high utilization and simple for heterogeneous DBAS. Finally, an example shows how to apply the SIM method to achieve the integration of heterogeneous DBAS.