Geographic data models are digital frameworks that describe the location and characteristics of things in the world around us. With a geographic information system, we can use these models as lenses to see, interpret, and analyze the infinite complexity of our natural and man-made environments. With the geodatabase, a new geographic data model introduced with ArcInfo 8, you can extend significantly the level of detail and range of accuracy with which you can model geographic reality in a database environment.
Zieler-Designer for ESRI
David Arctur is a product specialist at ESRI and is part of the geodatabase development team. He has written for the ""Earth Observation & Mapping Magazine,"" ""IEEE Computer Magazine,"" and ""International Journal of Geographical Information Science,"" He lives in Austin, Texas. Michael Zeiler is a technical writer and data model specialist at ESRI with experience in diagramming GIS concepts, building data models, and programming. He is the author of ""Exploring ArcObjects,"" ""Inside ARC/INFO,"" and ""Modeling Our World,"" He lives in Santa Fe, New Mexico.