Geographic Markup Wrapper (GMW) is an XML Schema implementation of ISO 19136, Geographic Markup Language - Extended schemas. It includes elements for defining geometry and functions for coverages. The XML schema was encoded using the encoding rules defined in ISO 19118, ISO 19139.

The namespace URI for Geographic Markup Wrapper (GMW) Version 1.1.0 is https://schemas.isotc211.org/19136/-/gmw/1.1.

gmw.xsd is the XML Schema document to be referenced by XML documents containing XML elements in the gmw namespace or by XML Schema documents importing the gmw 1.1 namespace. This XML schema includes (indirectly) all the implemented concepts of the gmw namespace, but it does not contain the declaration of any types.

https://schemas.isotc211.org/19136/-1/gmw/1.1.0/gmlWrapperTypes.xsd implements the UML conceptual schema defined in ISO 19136, Geographic Information - Geographic Markup Language Part 2: Extended schemas and encoding rules. It was created using the encoding rules defined in ISO 19118, ISO 19139.

https://schemas.isotc211.org/19136/-1/gmw/1.1.0/gmlWrapperTypes.xsd contains the following classes:

The GMW 1.1.0 imports these other namespaces:

When revisions to these schema become necessary, they will be managed in the ISO TC211 Git Repository.