DAVID
C. HAY has spent more than twenty-five years developing interactive, database-oriented
systems. He is president of Essential
Strategies, Inc., a consulting firm based in Houston, using modeling techniques
to help construct corporate information strategies and architectures, and to define
information requirements. He has done this for a wide range of industries, including
pharmaceutical research, news gathering, oil refining, and television broadcasting,
and has modeled various government agencies in the U.S. and Canada. It was during
the course of developing data models for this diverse group of clients that he
identified the common elements that are the basis for Data Model Patterns.
A
member of the GUIDE Project on Business Rules and the Independent Oracle Consultants
Alliance, Mr. Hay lives in Houston with his wife, Jola, and their children, Pamela
and Bob. In his spare time, he performs stand-up comedy and pursues the ancient
Japanese art of Origami. He can fold a square piece of paper into a flower, a
dinosaur, or any of myriad other figures—without any cutting, pasting, or
swearing.
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