A to Z GIS | Explore this related guide, featuring updated terms and graphics and developed in coordination with Esri’s GIS Dictionary team.
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classification
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[data architecture, statistics]
The ordering, scaling, or grouping of data into classes to simplify features and their attributes.
[symbology]
The process of sorting or arranging entities into groups or categories; on a map, the process of representing members of a group by the same symbol, usually defined in a legend.
[photogrammetry]
In imagery, the computational process of assigning pixels or objects to a set of categories, or classes, which share common spectral, shape, elevation, or other characteristics.