Geospatial Common eXtension (GCX)

Geospatial Common eXtension (GCX) Version: 1.0



GCX 1.0 is an XML Schema implementation derived from ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 7.2. It includes elements for xml implementation, from ISO 19139 updated for compatibility with 19115-3. The XML schema was encoded using the rules described in ISO/TS 19139:2007, Clause 8 and implementation approach from ISO/TS19115-3, Clause 8.

Sample XML files for gcx 1.0

XML Namespace for gcx 1.0

The namespace URI for gcx 1.0 is

XML Schema for gcx 1.0

gcx.xsd is the XML Schema document to be referenced by XML documents containing XML elements in the gcx 1.0 namespace or by XML Schema documents importing the gcx 1.0 namespace. This XML schema includes (indirectly) all the implemented concepts of the gcx namespace, but it does not contain the declaration of any types.

The XML Schema for gcx 1.0 are available here. A zip archive including all the XML Schema Implementations defined in ISO/TS 19115-3 and related standards is also available.

extendedTypes.xsd implements the UML conceptual schema defined in ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 7.2. It was created using the encoding rules defined in ISO 19118, ISO 19139, and the implementation approach described in ISO 19115-3 and contains the following classes (codeLists are bold): FileName, MimeFileType, and Anchor

The gcx 1.0 namespace imports these other namespaces:

Name Standard Prefix Namespace Location Schema Location

Geographic COmmon



Metadata Common Classes



XML Linking Language (XLink) Version 1.0. W3C Recommendation


Working Versions

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