Tuesday, August 11, 2009

What is GIS?

What is GIS?

Ok for you guys that’s wondering what is gis? Putting it really simple, you know those cool websites and programs showing you the world like Google earth, Microsoft Virtual Earth etc. Well that’s gis.

Gis is simply the world displayed on a computer screen, which can help us understand, interpret, question and visualize data that can reveal patterns, trends, relationships and many more.

We can analyze real-world problems more easily to name a few: A water department can manage their pipe lines, A Tourist department can produce maps for tourist paths, A fire fighting team can predict the spread of a fire using weather data. And off course you can find the shortest route to your favourite restourant using gis.

Other quotes to answer “What is GIS?” from: http://gislounge.com/what-is-gis/

“In the strictest sense, a GIS is a computer system capable of assembling, storing, manipulating, and displaying geographically referenced information, i.e. data identified according to their locations. Practitioners also regard the total GIS as including operating personnel and the data that go into the system.” USGS

A geographic information system (GIS) is a computer-based tool for mapping and analyzing things that exist and events that happen on earth. GIS technology integrates common database operations such as query and statistical analysis with the unique visualization and geographic analysis benefits offered by maps.” ESRI

“GIS is an integrated system of computer hardware, software, and trained personnel linking topographic, demographic, utility, facility, image and other resource data that is geographically referenced.” NASAGIS has already affected most of us in some way without us even realizing it. If you’ve ever using an Internet mapping program to find directions, congratulations, you’ve personally used GIS. The new supermarket chain on the corner was probably located using GIS to determine the most effective place to meet customer demand.

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