certain known source. [Archives]  A digital mapping used for exploration, demographics, dispatching and tracking. [General Dictionaries] 
n., The quali ty of a rec or d that is truly w hat i t purports  to be. T he tw o conc epts t hat allow for the indi rect  asses
sment and verification of the genuineness of a record are those of reliability and authenticity. [Archives] 
n., Any operation or procedure that relates one variable to one or more other variables. [Sciences] 
n., (GIS) A computer-based system c