The Open Geospatial Consortium (OGC) is an international voluntary consensus standards
organization whose members maintain the Geography Markup Language standard. The OGC
coordinates with the ISO TC 211 standards organization to maintain consistency between
OGC and ISO standards work. GML was adopted as an International Standard (ISO 19136:2007) in 2007.
GML is the XML data standard for the GeoWeb infrastructure, enabling Internet-connected devices to
access geographical information, including, for example, merchant locations and traffic conditions.
GML can also be included in version 1.0 of the United States National Information Exchange Model (NIEM).
