[data storage] Descriptive information, usually alphanumeric, that is stored in rows and columns in a database and can be linked to spatial data.

Object or person subject to being located.

Collection of terminological entries presenting information related to concepts or designations from one or more specific subject fields.

Standard containing the definitions of item classes requiring registration.

Datum describing the relationship of a temporal coordinate system to an object.

Ordered sequence of timestamps associated to a sequence of representations of the same object.

Verbal designation of a general concept in a specific subject field.

Data related to concepts or their designations.
 

Set of conventions defining the origin, scale, orientation and time evolution of a spatial reference system co-rotating with the Earth in its diurnal motion in space.

Partitioning of a space into a set of conterminous subspaces having the same dimension as the space being partitioned.

Gridded data whose attribute values describe characteristics of a grid coverage feature in a grid format.

[data structure] A thematic layer is a distinct spatial entity in a data layer. They are usually delineated as points, lines and polygons.

Polygon that encloses one of a set of points on a plane so as to include all direct positions that are closer to that point than to any other point in the set.