GIS Dictionary

[ESRI software] In Survey Analyst, a point with known coordinates, used as input to a computation.

[symbology] The scale at which symbols appear on a digital page at their true size, specified in page units. As

[coordinate systems] A method for identifying positions on the globe. This is often constructed with a grid that either refers

[ESRI software] In ArcView 3.x, a theme used to perform geocoding. A reference theme can be any point, line, or

[ESRI software] In Survey Analyst, occurs when a copy of a coordinate from a different project is added to the

[ESRI software] A DBMS-defined restriction that ensures that foreign key values in the rows in the child table always have

[data quality] A mechanism for ensuring that data remains accurate and consistent as a database changes. When changes are made

[physics] The proportion of incident radiant energy that is reflected by a surface. Reflectance varies according to the wavelengths of

[non-ESRI software] A utility, part of the Windows operating system, that allows you to view and edit the system registry.

1 [geography] In geography, an area usually distinguished by common cultural or physical characteristics, such as Southern California, Western Europe,

1 [data editing] To align two or more maps or images so that equivalent geographic coordinates coincide. 2 [geolocating] To