Glossary

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Geocoding - The process of assigning geographic coordinates (often expressed as latitude and longitude) to geographic data, such as street addresses or zip codes (postal codes). Address data that have been 'geocoded' can be displayed as a map or other geographic display.
GIS (Geographic Information System) or GIS software - A computer program for capturing, storing, checking, integrating, manipulating, analyzing and displaying data related to positions on the Earth's surface. Examples of commonly used GIS software include Google Earth, ArcGIS, Maptitude and MapInfo.
Google Earth and Google Earth Pro - Google Earth is a free program provided by Google that displays and maps the Earth using satellite imagery, aerial photography and GIS 3-dimensional graphics. Google Earth Pro is a version of Google Earth with more features that is available for a yearly fee and intended for commercial use.
Google Maps and Google Maps API - Google Maps is a free online program provided by Google that can be used for designing, generating, and delivering maps for non-commercial use. Google Maps API (Application Programming Interface) is the interface which allows integration of Google Maps into an external website and allows site specific data to be overlaid onto the Maps.