This article aims to provide more insight on the trend of data virtualization (DV) and the importance of data federation (DF) to support that trend. Stephen Swoyer of TDWI explains the concepts of DV; although quite technical, it gives a sense of the challenges DV technologies have overcome and what challenges lie ahead.
Quote from the article that describes data federation:
"With data federation, you actually gather the data and consolidate it dynamically at the time you issue a SQL query, and the SQL query is presented to a virtual view of the data."
Read the full article on The Case For Data Virtualizaion (Revisited). Sourced from www.tdwi.org.
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