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DW 2.0: The Architecture for the Next Generation of Data Warehousing (Morgan Kaufman Series in Data Management Systems) 1st Edition

3.6 out of 5 stars 8 customer reviews
ISBN-13: 978-0123743190
ISBN-10: 0123743192
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Product Details

  • Series: Morgan Kaufman Series in Data Management Systems
  • Paperback: 400 pages
  • Publisher: Morgan Kaufmann; 1 edition (July 9, 2008)
  • Language: English
  • ISBN-10: 0123743192
  • ISBN-13: 978-0123743190
  • Product Dimensions: 7.5 x 0.9 x 9.2 inches
  • Shipping Weight: 1.9 pounds (View shipping rates and policies)
  • Average Customer Review: 3.6 out of 5 stars  See all reviews (8 customer reviews)
  • Amazon Best Sellers Rank: #361,357 in Books (See Top 100 in Books)

Customer Reviews

Top Customer Reviews

By Uli Bethke on August 9, 2008
Format: Paperback
First of all, this book is not written with the DW novice in mind. Some of the chapters require a thorough understanding of DW theory and concepts.

Generally I found the book useful and I got some ideas that I will apply in one of my next projects. The biggest weakness of DW 2.0 is its lack in detail. In a lot of areas I found the book to be patchy and too high level. In my opinion DW 2.0 as presented in the book is not (yet) an elaborate data warehousing methodology.

What follows is a discussion of some of the more interesting concepts and chapters in the book.

(1) The different sectors of DW 2.0

To me it did not become fully clear what exactly the Interactive Sector is. Is it a cumulation of an enterprise's operational systems or is it a real time replication of these systems as an additional physical layer? A practical example really would have helped here. Personally I have my doubts if all the operational reporting requirements can be met by the Interactive Sector, e.g. how can a requirement that needs to query data from both the Interactive and Integrated Sector be met?

(2) Fluidity of technology sector

While this offers some interesting thoughts on how to shield the DW 2.0 from changes in business requirements and the operational source systems it only scratches on the surface. The idea as presented by the authors is to physically separate data that structurally does not change frequently (semantically stable date) from data that changes often (temporal data). From the book it does not become clear how this can be achieved. The only advice the authors give here is: "The answer is that semantically static and semantically temporal data should be physically separate in all database designs." (p.121).
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Format: Paperback Verified Purchase
I bought this book because it had good reviews, however, after reading it I was extremely disappointed with Inmon as it does not appear to be a detailed discussion about data warehousing at all, but an over hyped book which tries to explain fundamental data warehousing techniques in a way that you would explain to a baby (repeated a thousand times and with diagrams of various shapes including triangles, circles, and squares). Seriously! Triangles, Circles and Squares!!!

This book is way overpriced for what it is and the fact that Inmon's name is printed on it, does not mean that the book follows Inmon's traditional data warehousing books. This book is different because it does not deliver much content nor does it deliver any new concepts, breakthroughs or strategies of building data warehouses today.

So whats in the book? Honestly, not much. Just very simple concepts scattered around the book in such little detail that it would be impossible to implementation or incorrect to apply in a real world scenario. For example, if you wanted to look at methods of correcting data in todays complex environments, you can turn to page 330 and find the most useless generic statement "A third approach of correcting values in DW 2.0 environment is the practice of finding bad records and then changing the values in those records". Really? So this is what an expert in the field has to say about it? I think not!

You can see DW 2.0 plastered all over the book for some of the most fundamental concepts that having nothing to do with the next generation of data warehousing, nor are many of these concepts discussed recommended for building the next generation of data warehouses.

If you would like to learn more about DW 2.
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Format: Paperback
Some ideas found in this book were pretty interesting and I am looking forward to put them into use in my workplace. However, a 50 page-long "DW 2.0" chapter of some other book would be a much better place to put entire content of this book into.

The major disappointment comes from lack of medium-level details I would expect. Most ideas are described from a helicopter-view perspective and are being repeated again and again and again through 400 pages.
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Format: Kindle Edition Verified Purchase
Well written, clear great intro to the next version of DW., Easy to read and a substantial transition to new from older
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