The Data
Warehouse
Toolkit
The Data
Warehouse
Toolkit
The Defi nitive Guide to
Dimensional Modeling
Third Edition
Ralph Kimball
Margy Ross
The Data Warehouse Toolkit: The Defi nitive Guide to Dimensional Modeling, Third Edition
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Copyright © 2013 by Ralph Kimball and Margy Ross
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About the Authors
Ralph Kimball founded the Kimball Group. Since the mid-1980s, he has been the
data warehouse and business intelligence industry’s thought leader on the dimen-
sional approach. He has educated tens of thousands of IT professionals. The Toolkit
books written by Ralph and his colleagues have been the industry’s best sellers
since 1996. Prior to working at Metaphor and founding Red Brick Systems, Ralph
coinvented the Star workstation, the fi rst commercial product with windows, icons,
and a mouse, at Xerox’s Palo Alto Research Center (PARC). Ralph has a PhD in
electrical engineering from Stanford University.
Margy Ross is president of the Kimball Group. She has focused exclusively on data
warehousing and business intelligence since 1982 with an emphasis on business
requirements and dimensional modeling. Like Ralph, Margy has taught the dimen-
sional best practices to thousands of students; she also coauthored fi ve Toolkit books
with Ralph. Margy previously worked at Metaphor and cofounded DecisionWorks
Consulting. She graduated with a BS in industrial engineering from Northwestern
University.
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