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GIS is most
often associated with maps. A map, however, is only one of
three ways a GIS can be used to work with geographic
information. These three ways are:
The Database View: A GIS is a unique kind of
database of the world—a geographic database (geodatabase).
It is an "Information System for Geography."
Fundamentally, a GIS is based on a structured database
that describes the world in geographic terms.
The Map View: A GIS is a set of intelligent
maps and other views that show features and feature
relationships on the earth's surface. Maps of the
underlying geographic information can be constructed and
used as "windows into the database" to support queries,
analysis, and editing of the information. This is called
geovisualization.
The Model View: A GIS is a set of information
transformation tools that derive new geographic datasets
from existing datasets. These geoprocessing
functions take information from existing datasets, apply
analytic functions, and write results into new derived
datasets.
Together, these three views are critical parts of an
Intelligent GIS and are used at varying levels in all GIS
applications. We offer the following G.I.S.
Services at D.C. Group: Geodatabase Development Custom Map Creation
Database Linking On-Site Mapping
Data
Conversion Data Collection |
