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How does a GIS
data model work?
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An ArcGIS data
model is written in a graphical
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model language
(Visiotm) that provides both a
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diagram of the
data structure as well as UML
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(Universal Modeling
Language) code.
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UML code can be
directly ported to the GIS to
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create an empty
database structure defining all of
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the necessary
relationships and dependencies.
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