GIS is not just an improved, digital version of the traditional paper map, it is much more. GIS involves the collection and analyzing of spatial and other data as they relate to specific geographic entities, rather than simply displaying them on a map. The data related to a property might include the lot area, address, owner’s name, type of house, number, age and gender of occupants, school support, assessment value, type of soil and so on. Intelligent use of this data makes GIS a very powerful tool.