Concept
Alternate Profiles
Different views and formats:
Alternate Profiles ?Profiles (alternative information views) encoded in various Media Types (HTML, text, RDF, JSON etc.) are available for this resource.
- Preferred Labelskos:prefLabel
Geography Markup Language
- URI
- http://www.opengis.net/def/encoding/ogc/gml ↗Go to the persistent identifier link
- Within Vocab
- OGC Standards Baseline
| Definitionskos:definition | The OpenGIS® Geography Markup Language Encoding Standard (GML) The Geography Markup Language (GML) is an XML grammar for expressing geographical features. GML serves as a modeling language for geographic systems as well as an open interchange format for geographic transactions on the Internet. As with most XML based grammars, there are two parts to the grammar – the schema that describes the document and the instance document that contains the actual data. A GML document is described using a GML Schema. This allows users and developers to describe generic geographic data sets that contain points, lines and polygons. However, the developers of GML envision communities working to define community-specific application schemas [en.wikipedia.org/wiki/GML_Application_Schemas] that are specialized extensions of GML. Using application schemas, users can refer to roads, highways, and bridges instead of points, lines and polygons. If everyone in a community agrees to use the same schemas they can exchange data easily and be sure that a road is still a road when they view it. |
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| seeAlsoseeAlso | http://www.ogc.org/standards/gml |
| Statusstatus | valid |