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Management Information Systems
Notes 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.
Figure 10.8: Map View
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.
Figure 10.9: Model View
10.5.2 Components of GIS
GIS constitutes of five key components:
Hardware
Software
Data
People
Method
Hardware
It consists of the computer system on which the GIS software will run. The choice of hardware
system range from 300MHz Personal Computers to Super Computers having capability in Tera
FLOPS. The computer forms the backbone of the GIS hardware, which gets it’s input through the
Scanner or a digitizer board. Scanner converts a picture into a digital image for further processing.
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