GeocodageGeocoding is the process of assigning geographic identifiers (coordinates) to street addresses.

Addresses are confronted with a cartographic database containing a street directory for each town, as well as their geometry. Geocoding takes an address, correct its spelling if needed, and matches it to a street specific segment, taking into account the side of the street.

You can also deduct from geocoding other kind of geographic information, such as the INSEE code of the town, or the IRIS code of the address location.

A geocoder is a piece of software or a (web) service that helps in this process.