Dictionary Term

Data Virtualization


Data virtualization (also known as data federation) is a process whereby data is collected from different databases without ever copying or transferring the original data itself.

Rather than collect all the information in a database, data virtualization collects metadata—data that describes the structure of the original data—and places it into a single database. Data virtualization gives users access to third-party data for organization, analysis etc., without having to go to the trouble and expense of full data integration or data warehouse creation.

Sources :

http://searchdatamanagement.techtarget.com/definition/data-federation-technology http://en.wikipedia.org/wiki/Federated_database_system http://www.techopedia.com/definition/13789/data-federation-technology

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