GIS Dictionary

1 [accuracy] The comparison of the accuracy of an instrument’s measurements to a known standard. 2 [spatial analysis] In spatial […]

[graphics map display] A line on a map extending between a feature’s geographic position and its corresponding symbol or label,

[ESRI software] In ArcScene and ArcGlobe, an object that defines the perspective of a scene or globe’s display.

[ESRI software] A record returned as a potential match for an address in the geocoding process.

[computing] In a relational database, any key that can be used as the primary key in a table.

[analysisgeoprocessing] In location-allocation, the maximum number of people or units that a center can service, contain, or have assigned to

[ESRI software] In ArcGIS, the text for a command that appears with the “Text Only” and “Image and Text” display

[navigation] One of the four compass directions on the earth’s surface: north, south, east, or west.

[mathematics] The correspondence or equivalency between sets; how sets relate to each other. For example, if one row in a

[physics] An electromagnetic wave, such as radio, with modulations that are used as signals to transmit information.

[GPS] Signal processing that uses the GPS carrier signal to lock onto the PRN code generated by the satellite.