- GIS are powerful tools for
handling large spatial databases.
- They have spatial and temporal
analysis capabilities.
- Data is maintained in digital
format so it is more physically compact than using paper maps.
- GIS can maintain and retrieve
large quantities of data quickly and can perform complex spatial analyses
quickly.
- They are useful in decision
making, assessing planning options, change detection and analysis.
- GIS is especially useful because maps and other
data are stored or filed as layers of information, This makes it possible
to perform complex spatial analyses. A data layer is a set of logically
related geographic features and their attributes.
