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2. Geographic information system - Wikipedia

   en.wikipedia.org/wiki/Geographic_Information_System

   Geographic information systems (GIS) play a constantly evolving role in geospatial intelligence (GEOINT) and United States national security. These technologies allow a user to efficiently manage, analyze, and produce geospatial data , to combine GEOINT with other forms of intelligence collection, and to perform highly developed analysis and ...

3. List of GIS data sources - Wikipedia

   en.wikipedia.org/wiki/List_of_GIS_data_sources

   This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.

4. Geographic information system software - Wikipedia

   en.wikipedia.org/wiki/Geographic_information...

   A GIS software program is a computer program to support the use of a geographic information system, providing the ability to create, store, manage, query, analyze, and visualize geographic data, that is, data representing phenomena for which location is important.

5. Web GIS - Wikipedia

   en.wikipedia.org/wiki/Web_GIS

   The Geospatial Semantic Web is a vision to include geospatial information at the core of the Semantic Web to facilitate information retrieval and information integration. [31] This vision requires the definition of geospatial ontologies, semantic gazetteers, and shared technical vocabularies to describe geographic phenomena. [32]

6. Geographic information science - Wikipedia

   en.wikipedia.org/wiki/Geographic_information_science

   Geographic information science (GIScience, GISc) or geoinformation science is a scientific discipline at the crossroads of computational science, social science, and natural science that studies geographic information, including how it represents phenomena in the real world, how it represents the way humans understand the world, and how it can be captured, organized, and analyzed.

7. Internet GIS - Wikipedia

   en.wikipedia.org/wiki/Internet_GIS

   The World Wide Web is an information system that uses the internet to host, share, and distribute documents, images, and other data. [33] Web GIS involves using the World Wide Web to facilitate GIS tasks traditionally done on a desktop computer, as well as enabling the sharing of maps and spatial data. [7]