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Run the program for any purpose
Study how the program works, and change it to make it do what you wish
Redistribute copies so you can help your neighbour
Improve the program, and release your improvements (and modified versions in general) to the public, so that the whole community benefits
Free and Open Source GIS software is known as FOSS GIS software. Have a look at the Open Source Geospatial Foundation to get an idea of the large number of FOSS GIS products available.
Did you know that you can replace your expensive GIS software with free, open source GIS software? By switching to open source software your company will immediately enjoy the following benefits:
GIS Solutions provides full support and training for gvSIG and Quantum GIS, two of the most popular open source GIS programs. We will help to install the software and then train you how to use it. Please contact us for more details.