Question: Is there an industry standard estimation methodology available for the data modeling of a data warehouse? My understanding was that it is purely based on Fact, Dimension, Relationships and Aggregation. How will we incorporate the complexities?

Joe Oates' Answer: About the closest one can come to a standard industry methodology is the Ralph Kimball approach. I recommend that you read his seminal work on introduction to data warehousing. This book is entitled The Data Warehouse Toolkit (Second Edition).

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