What is the importance of Spatial Information Technology?

Resource management of a region is performed either by manual map overlay method or by computer technology using numerical special data sets or geo-based files. Only a few maps can be overlaid simultaneously for visual analysis by manual map overlay method. The computer-assisted approach requires information in digital form. In this approach inter-relation of resource features (attributes or factors) is performed through numerical transformation.

The development of modern data gathering techniques and computer assisted cartography give new impetus to spatial data storage and exchange. At the same time combined use of GIS and DIP (Digital Image Processing) provide better prospects of geographical monitoring and forecasting over wider areas within limited time span. It would be easy to develop predictive modelling capabilities for effective public policies in years to come.