GIS Dictionary

[database structures] A data structure in which collections of tables are logically associated with each other by shared fields.

1 [ESRI software] In ArcGIS Spatial Analyst, an operator that evaluates specific relational conditions. If a condition is TRUE, the

[database structures] An association or link between two objects in a database. Relationships can exist between spatial objects (features), between

[database structures] An item in the geodatabase that stores information about a relationship. A relationship class is visible as an

[accuracy] A measure of positional consistency between a data point and other, near data points. Relative accuracy compares the scaled

[navigation] A bearing measured relative to a vessel or aircraft’s heading.

[map projections] Coordinates identifying the position of a point with respect to another point.

[computing] In computing, the location of a computer file given in relation to the current working directory.

[ESRI software] In geodatabase editing, the other replica in a replica pair of parent and child. The relative replica to

[cartography] A map element that contains a simplified view of the sources used to compile a map.

[cartography] Elevations and depressions of the earth’s surface, including those of the ocean floor. Relief can be represented on maps