Customer Review

5.0 out of 5 stars Worth reading, 26 Jan. 2013
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This review is from: DW 2.0: The Architecture for the Next Generation of Data Warehousing (Morgan Kaufman Series in Data Management Systems) (Paperback)
After working on more than a half a dozen of DW projects using Kimball methodology I started to see repeating challenges which lead to decisions or thoughts that I wouldn't classify as Kimball approach. I thought it is the right thing to do but I didn't feel comfortable with that so I thought it is time to check Inmon point of view.

Inmon tries to create a definition of DW 2.0 and I was positively surprised that many examples match my experience and decisions that I didn't feel comfortable with are actually important part of DW 2.0.

Probably the most interesting part for me was that I agree with many aspects (not all) of DW 2.0 but actually my experience is only Kimball which shows quite a significant overlap. The book doesn't go into design details where more distinct differences could be made.

If I compare it to Kimball I would say DW 2.0 is most applicable to large DW which is also what Inmon focuses on in his examples. What I learnt indirectly about Kimball is that it focuses on design and does not try to go into details of other important aspects of building a DW which are outside of the design; Inmon on the other hand does talk about it which I found very useful.

Am I going to use Inmon now? I might use some concepts like interactive area for real time DW (which is rather a pain) and be more flexible with design for instance include exploration area and use Inmon Data Mart approach for Power Users needs but I will most likely stick to Kimball with his Data Mart definition for core DW development but that is largely due to projects I do. For large implementations where people are not at a stage of learning what is a data warehouse I will most likely consider Inmon approach...maybe not all of it but large part that was presented in this book.

Take care
Emil
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