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Common Warehouse Metamodel: An Introduction to the Standard for Data Warehouse Integration
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by John Poole, Dan Chang, Douglas Tolbert, and David Mellor
Sales Rank: 1146191
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$5.62
At Amazon
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Paperback: 208 pages
Publisher: Wiley; 1st edition November 15, 2001
Language: English
ISBN-10: 0471200522
ISBN-13: 978-0471200529
Product Dimensions:
8.8 x 7.7 x 0.7 inches
Shipping Weight: 1.1 pounds
Product Description
The official guide to programming with the revolutionary data-sharing technology
The Common Warehouse Metamodel (CWM) is the new OMG standard that makes the sharing of data seamless. The CWM standard development team provides developers with a complete overview of what CWM is and how it works. After acquainting readers with the CWM architecture and how each CWM component fits into existing database and data warehouse architectures, the authors provide expert guidance on how to plan for, implement, and deploy CWM technologies.
Companion Web site features updates on CWM technologies, descriptions of tools, and links to vendor sites.
Back Cover Copy
"The time has come for the consumers themselves to step forward and to specify a standard for meta data semantics and meta data exchange. This book is an important first step in that direction."
–W. H. Inmon, from the Foreword
The Common Warehouse Metamodel (CWM) is rapidly gaining momentum within the data warehousing and business analysis communities, and is being incorporated into the next generation of data warehousing products and tools. This new standard for meta data interchange, which was developed by the Object Management Group (OMG), provides for seamless integration of data warehouses–– a critical ingredient for sharing data within and across organizations.
This book provides a comprehensive and authoritative overview of CWM. The authors are among the key developers of the CWM standard, and they give you an intimate understanding of how to develop and implement CWM applications for data warehousing and business analysis. They also explain how CWM relates to both established and forthcoming standards for system integration and interoperability.
The book covers everything youll need to know to begin planning your own CWM projects, including: - An overview of the core metamodeling technologies that CWM employs, including Meta Object Facility (MOF), Unified Modeling Language (UML), XML Meta Data Interchange (XMI), and Interface Definition Language (IDL)
- How CWM extends the OMG Metamodeling Architecture into the data warehousing and business analysis domains
- Concrete examples of how CWM is used to model various real-world data warehousing applications
The Web site contains updates to the CWM technology, descriptions of tools, and links to vendors.
Customer Reviews & Comments
Ok, I am a known heretic. I am not impressed by the CWM model. It is oriented toward the object-oriented implementation of a tool for metadata exchange, not toward representing the things business people would be looking for in a meta data repository. This book is better than the on-line specification at describing the model--which was really incomprehensible--but this is at the expense of completeness. Definitions are not available for all classes and the ones that are are not clear (to me at least). The relationships are barely defined at all. In fairness, the model is so complex that it may not be possible to describe clearly to anyone not deeply immersed in the language of object-orientation. The team of authors is further hampered by its use of UML. The notation does not permit a complete inheritance tree to be portrayed in a diagram if the diagram is of less than the entire model. Two classes may be related, but you can't see this because the relationship is between great grandparents, shown on a different page.
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Common Warehouse Metamodel: An Introduction to the Standard for Data Warehouse Integration
Available from Amazon
Price: $5.62
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