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Introduction
Geographical Information System (GIS) is a popular information system for
processing spatio-temporal data. It is used as a collaborative platform for vi-
sualization, analysis and computation involving spatio-temporal data. GIS is
the name for a generic information domain that can process spatial, a-spatial
or non-spatial and spatio-temporal data pertaining to the objects occur in to-
pography, bathymetry and space. It is used for many decision support systems
and analysis using multiple criteria. It has emerged as one of the important
systems for collaborative operation planning and execution using multi cri-
teria decision analysis