Data warehousing has been around for about two decades. In that time data warehousing has gone from a concept to conventional wisdom. Today there are many different vendors and consultants with their own version of what a data warehouse is.

First made available in 2006, now there is a concrete definition of what the next generation of data warehousing is going to look like. On Bill Inmon's website www.inmoncif.com there is the definition and description of DW 2.0TM. Unlike the term "data warehouse," DW 2.0TM is trademarked. This means that every vendor and every consultant that wants to reshape the concept of DW 2.0TM to meet their marketing needs will not be able to do so.

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