Meta object approach to database schema integration

Abstract

Database schema integration is significant not only in building multidatabase systems but also in data warehousing.Metaduta, which de3ne schenzas, are normally involved in the surrounding issues. And while many of these issues have been addressed in the past, unresolved issues remain. In this paper; we present an approach that not only uses metadata but also uses meta-meta information to make schema integration more possible. Our solution requires metu object facilit). that serves not only as a repository but also as a more feasible means of nianaging meta data. We also advocate the use of such a facility as part of an object-oriented middleware environment that provides an open inte$ace standard and several useful services in distributed object management.

Technology Challenges in E-Service Accessibility

“…While many organizations invest heavily on data management, there are some subtle areas of data management such as meta-data and master data and centralized data definition which are still not considered important in E-governance and which when emphasized make a big difference in the overall quality of services [7]. Since government affairs are highly heterogeneous in nature and involve more than one vendor and technology, and integration of information is of paramount importance in policy making, hence meta-data-based approaches that use meta-information and meta-meta information for information integration need to be used [8].…”

Information Mediation Using Metamodels

“…As an example, Tan, Zaslavsky, and Bond (2000) proposed a MOF based metadata solution for database schema integration. Mediator implementations can adopt different conversion rules.…”