A short time ago I’ve posted an article on the installation of QGIS in combination with a PostGIS database in the background. As we all know, Windows is mostly used as OS on a PC so this is the Windowized version. This is a short summary that sums up the article of a site called Boston GIS. I’ll show you how to install QGIS version 1.8 (which will be updated in some days) and PostgreSQL with PostGIS extension and show you the first steps in the import of shapefiles and raster data.
In the context of “where are your customers” one main element is to monitor file changes: everytime your customer-file changes the new customer entry must be mapped to a certain point in your webmap. This would enable us to update our density maps or other analytical overview maps in terms of business reporting.