Documentation

Documentation, tools, and resources for working with ISO/TC 211 XML and JSON schemas.

Schema Browser

Interactive documentation for each schema package. XML schemas use LutaML XSD; JSON schemas use LutaML JSON Schema. Browse elements, types, properties, and cross-references.

Browse schemas

Resources Catalog

XSLT transforms, Schematron validation rules, example instances, codelist dictionaries, and download packages.

Browse resources

Raw Schema Files

Direct access to all XSD and JSON schema files organized by standard, part, module, and version.

Browse files

URL Patterns

Schema files follow a consistent URL pattern for stable referencing in schemaLocation attributes and imports:

XSD schema location

https://schemas.isotc211.org/{Standard}/{Part}/{Module}/{Version}/{Module}.xsd

Example: https://schemas.isotc211.org/19115/-1/cit/1.3.0/cit.xsd

JSON schema location

https://schemas.isotc211.org/json/{Standard}/{Part}/{Module}/{Version}/{Schema}.json

Directory Structure

All schemas follow a consistent naming convention: {standard}/{-part}/{module}/{version}/. 

schemas/
  19115/-1/cit/1.3.0/
    cit.xsd                # Main schema entry point
    citation.xsd           # Additional types
    cit.sch                # Schematron rules
    examples/              # Example instances
      *.xml
    index.adoc             # Documentation

  json/
    19115/-4/mdj/1.0.0/
      mdj.json             # Main JSON schema
      Feature.json         # Additional definitions
      examples/            # JSON example instances
        *.json

  19115/resources/
    transforms/            # XSLT stylesheets
    codelists/             # Codelist dictionaries
    bundles/               # ZIP downloads
    schematron/            # Cross-cutting rules

External Resources