July 2010
Beginner to intermediate
432 pages
8h 45m
English
Content preview from Data Model Patterns: A Metadata Map
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1
ABOUT METADATA MODELS
There once was a fellow named Corey
Whose career was not covered in glory
He had a bad day
When he just couldn’t say
Me-ta-da-ta Re-pos-i-TOR-y.
WHAT ARE METADATA?*
During the 1990s, the concept of data warehouse** swept the information technology industry. After many years of trying, it appears finally to be possible for a company to store all of its data in one place for purposes of reporting and analysis. The technology for doing this is still new, and the first attempts have had mixed results, but the effort has been quite serious.
One of the problems that arose from this effort was the realization that if a senior executive is going to ask a giant database a question it is necessary to know just what is in the ...