Virtual data warehouse: implementation and experimental comparison Online publication date: Wed, 09-Jun-2010
by Khurram Shahzad, Ghulam Mustafa
International Journal of Management and Decision Making (IJMDM), Vol. 11, No. 1, 2010
Abstract: The purpose of this paper is to evaluate the virtual data warehousing (VDW) concept, by evaluating its capabilities to solve the problems that are identified in recent studies. In this study, we have developed a tool (called VDW-tool), with the capability of implementing virtual data warehouse, and proposed a framework (called 4-DEF), for evaluation of data warehouse. In order to evaluate the virtual data warehouse, we have compared its capabilities with conventional data warehouse, by means of 4-DEF framework. To demonstrate that, results from four experimental case studies are included in this paper. It is found that virtual data warehouse not only enhances schema and content flexibility, but it also provides on-the-fly data for decision support purposes. Furthermore, our experiments demonstrate that the performance of conventional data warehouse (DW) is slightly better than virtual data warehouse, as long as the size of DW is not too large.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Management and Decision Making (IJMDM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook