Exported Content

Coverages DWG

The central purpose of the Coverages DWG is to promote and oversee development of OGC Implementation Specifications for exploitation of, and accessing, coverage data, including images and other grid coverages. Secondary purposes include promoting use of these specifications, and refining the OGC Abstract Specification as may be needed to better support these specifications.

Geospatial Fusion Testbed

Testbed. The 2000 Geospatial Fusion Testbed addressed standard ways of "fusing" disparate kinds of data into one spatial framework. Such data include text with embedded place names as well as video, sound, and photos whose metadata refer to "place." Through Geospatial Fusion, they can be geo-indexed, integrated with other spatial data, and shared across the Internet. The Testbed mainly addressed text, but OGC's specifications will accommodate the other kinds of data.

Retired Documents


The documents listed below have been retired and provided for historical purposes only. Please go the Standards pages to the left for the most current versions of the Implementation Specifications, Best Practice or Discussion Papers.


Google submitted KML (formerly Keyhole Markup Language) to the Open Geospatial Consortium (OGC) to be evolved within the OGC consensus process with the following goal: KML Version 2.2 has been adopted as an OGC implementation standard. Future versions may be harmonized with relevant OGC standards that comprise the OGC standards baseline. There are four objectives for this standards work:

  • That there be one international standard language for expressing geographic annotation and visualization on existing or future web-based online and mobile maps (2d) and earth browsers (3d)....

Symbology Encoding

This Specification defines Symbology Encoding, an XML language for styling information that can be applied to digital Feature and Coverage data. This document is together with the Styled Layer Descriptor Profile for the Web Map Service Implementation Specification the direct follow-up of Styled Layer Descriptor Implementation Specification 1.0.0. The old specification document was split up into two documents to allow the parts that are not specific to WMS to be reused by other service specifications.