The system integrates common database operations such as query and statistical analysis with the unique visualization and geographic analysis benefits offered by maps. These functions make GIS different from other information systems and make it valuable to a wide range of public and private sectors.
GIS merges graphical features and tabular data to be able to assess real-world problems. This system emerged with the discovery that maps could be programmed using codes and then stored in a computer, and can be modified whenever necessary. This is a very significant change from the era of basic cartography when cartographers have to draw maps by hand.
GIS can be very useful to NGOs and LGUs. It helps in answering questions and solving problems just by looking at maps without having to go through large volumes of confusing data in tabular form. It answers questions such as "which locations need development?" and thus can aid in the targeting of projects. Data can also be shared easily and effectively managed.
Education in GIS is slowly taking on different universities, societies, organizations and different sectors in the government. As more people acquire GIS skills, the technology will become more accessible and useful to society. A better understanding of GIS principles will popularize it, leading to its implementation on a much broader scale.
Sources:
Bishop, et al., (2002) Meeting the needs for GIS skills in developing countries. Blackwell
Publishers: Oxford, USA
GIS.com: The Guide to Geographic Information Systems
(www.gis.com)
GIS Primer
(http://gis.nic.in/gisprime/)
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