Tilottama, The three applications that you've mention are good. You can also add uDig.
You'll find that most applications are starting to provide integration with Grass for more robust analysis. I suggest that you find a typical analysis work flow and try each one with the same tasks and data, compare results and see what best suits your needs. You will find comparisons and case studies out there, e.g. [1] and [2], however they may not be concerned with the features that you find important. It will pay you to start with a set of functionality that is important to you and that you are evaluating against. Bruce [1] http://wiki.osgeo.org/wiki/GIS_Desktop_Comparison [2] http://wiki.osgeo.org/wiki/Case_Studies On 28/11/11 3:31 PM, "Tilottama Ghosh" <[email protected]> wrote: Hi, I have been using ArcGIS for all my projects for over four years. I moved back to India, my home country, this year, and have realized how unaffordable ArcGIS is for most people in India. Therefore, it is time for me to start using the available Opensource GIS software. I mostly use the Analysis tools, Spatial analyst, Spatial statistics, Data Management tools in ArcGIS. Could you please suggest which of the open source GIS software - GRASSgis, Quantum GIS, and gvSIG, would provide me with similar tools to work with? Any kind of suggestions will be greatly appreciated. Thanks and Regards, Tilottama
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