Set of items with common properties.

That which can be individually described or considered

Node not related to any edge

Standardisation in the field of digital geographic information. These standards may specify, for geographic information, methods, tools and services for data management (including definition and description), acquiring, processing, analysing, accessing, presenting and transferring such data in digital / electronic form between different users, systems and locations.

Electro-magnetic radiation energy per unit area per unit time

Selection of a set of objects from the domain of a coverage based on the feature attribute values associated with the objects

Scale with an arbitrary origin which can be used to describe both ordering of values and distances between values

[GIS proessing] The intersect tool is a GIS processing operation that uses two inputs to generate an output layer. It restricts the output similar to clip and preserves the attributes in both input layers.

Capability to communicate, execute programs, or transfer data among various functional units in a manner that requires the user to have little or no knowledge of the unique characteristics of those units

Closeness of the relative positions of features in a dataset to their respective relative positions accepted as or being true.

Set of all direct positions that are on a geometric object but which are not on its boundary

Named set of operations that characterize the behaviour of an entity

Power per unit solid angle from a point source into a particular direction