Feature Class A term used to define coverage elements such as arcs, nodes, or polygons. Georeference To represent page coordinates on a planar map with real world coordinates. GIF Compuserve Graphics Interchange Format. Gifs and Jpgs are the only graphic formats recognized by World Wide Web browsers. A graphic representation of a real world object or area.
Images can include aerial imagery, satellite data and photographs.
Relate A relation between two tables in which many records in the attribute table are related to one record in the relational table. PAT Polygon attribute table or Point attribute table which stores attribute information linked to point or polygon features. A coverage can have either a point or polygon attribute table but not both. A contraction of the words picture element. The smallest unit of information in a raster based format.