2.1. DEFINITIONS
GIS definitions:
GIS- Geographical Information System is computer based mapping that allows for seeing, exploring, and analyize data by location.
(www.princeton.edu/~sbwhite/wr177LT.html)
GIS- Geographic Information Systems. "Decision support system involving the integration of spatially referenced data in a problem solving environment.
((Cowen 1988)
fwie.fw.vt.edu/tws-gis/glossary.htm)
GIS- A mapping system that uses computers to collect, store, manipulate, analyze, and display data. For example, GIS can show the concentration of a contaminant within a community in relation to points of reference such as streets and homes.
(www.atsdr.cdc.gov/glossary.html)