This satellite positioning system is meant to provide an independent positioning system upon which European nations can rely.
This independence is important: the US GPS suffers from many restrictions to its positioning accuracy (about 20 meters for the free signal) and to its reliability (selective availability may be enabled in particular areas of coverage for technical and/or political reasons).
Geocoding 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.
Geolocation is the process of obtaining and possibly transmitting the geographic position of a person or a resource.
Geoptimization is the combined use of geographic information and optimization algorithms to enhance organization’s and companies’ efficiency.
GeoScheduling is the process of optimizing mobile workers’ or resources’ schedules, thanks to geography.
A GIS (Geographic Information System) is a computer system for gathering, organizing, managing, analyzing and combining, working out and displaying geographically-referenced information, from various sources, thus notably contributing to space management.
The GPS (Global Positioning System) is an American system of satellites and receptors enabling users to know their exact location anytime and almost anywhere on Earth.
In this kind of model, we suppose that the tendency of a customer to go to a store will be proportional to its attractiveness, and inversely proportional to the square of the distance he’ll have to travel to get there.