Providing Assistance for Database Schema Integration A Process Model Approach

Abstract

Over the past decades, a considerable number of studies have been devolted to database schema integration. Although completely integrated schema has been an objective of study for a long time, only a few satisfying methodologies have been proposed, especially about schema compariso. The primary cause is that a concept can be modeled in many different ways by different people. In serverse engineering, it would cause several semantic confustions severa schemas. Most of the resolutions of these issues in proposed methodologies are dependent on database administrators (DBAs) to provide some domain knowledge to aid the process of integration. That is to say that human plays an important role in integrating phase and saddles responsibility with the success or failure about integrated results. It would, ad we said above, be ineffective to develop an automatic methodology for schema integration, but it is possible to find some methods to assist users in disco vering or checkin correspondences, and reduce dependence on human. In this paper, we consider that takin process models into account is a practicabl way to provide the integration more semantics and decrease the reliance on the DBAs.