Object-Oriented Data Warehousing from Multiple Sources

Abstract

A data warehouse is an information provider that collects necessary data from individual source databases to support analytical processing of decision-support functions. In the past, we introduced the concept of object-oriented data warehousing in a single data source and proposed view-maintaining algorithms to support OLAP. In this paper, the proposed data model of the object-oriented data warehousing is extended to be suitable in multiple-source environments. Meta-objects are also used to keep the management and maintenance of object -oriented data warehousing efficient. Moreover, two vie -related algorithms in such a data model are also presented to keep views desired in a data warehouse.