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A Monday Morning thought found in the technical paper of ESRI System Design http://www.esri.com/library/whitepa...
GIS Cost Waterfall
Cost of a change
– $1 -in the requirements stage
– $10 -in the design
– $100 -in construction
– $1000 -in implementation
Moody, 1996 in Database Programming & Design, October, 57-64

Sources of information

– Open Source list of GIS http://opensourcegis.org/ / This effort represents an attempt to build a complete index of Open Source / Free GIS related software projects. The effort has some way to go, especially for projects in languages other than English. The definition of GIS has been kept loose to encompass a broad range of projects which deal with spatial data.

– GRASS http://grass.itc.it/ You are at the official GRASS site in Italy / This site is updated daily : May 29 2005 / Commonly referred to as GRASS, this is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

– Geographical Information Science Group (GIS-group in Sweden) http://www.ida.liu.se/divisions/hcs/gis/

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