- Geographic Information System(s).
Geographic Information Systems are designed to work with data that is referenced by spatial or geographic coordinates. GIS includes tools and systems for managing, modelling and analysing data that can be referenced by spatial or geographic coordinates.
For more information see:
- www.ordsvy.gov.uk/gis-files - Introduction to GIS.
- www.freegis.org - Information on free GIS software, links and documentation.
- http://everything.explained.at/Geographic_information_system - GIS explained.