 to a system of coordinates (latitude, longitude, elevation or depth, etc.). [Sciences] 
n.,
 A digital mapping used for exploration, demographics, dispatching and tracking. [General Dictionaries] 
n., 1. The activities of an organization or individual performed to accomplish some mandate or mission. – 2. Computing •
Initialism for “geographic information system.” 
the input values, returning a single output value. [Archives] 
n., A note explaining a difficult or obscure word or phrase, especially such a no