ISO
ISO TC 211 Geographic information/Geomatics Committee site

XML schema representations of geographic technology standards

Metadata for Resource Identification (MRI)

Metadata for Resource Identification (MRI) Version: 1.3

UML diagram of Metadata for Resource Identification classes in the mri namespace
Figure 1. Classes in the mri namespace
UML diagram of Metadata for Resource Identification codelists in the mri namespace
Figure 2. Codelists in the mri namespace

Description

MRI 1.3 is an XML Schema implementation derived from ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 6.5.3. It includes elements for identifying resources. The XML schema was encoded using the rules described in ISO/TS 19139:2007.

XML Namespace for mri 1.3

The namespace URI for mri 1.3 is https://schemas.isotc211.org/19115/-1/mri/1.3.

XML Schema for mri 1.3

mri.xsd is the XML Schema document to be referenced by XML documents containing XML elements in the mri 1.3 namespace or by XML Schema documents importing the mri 1.3 namespace. This XML schema includes (indirectly) all the implemented concepts of the mri namespace, but it does not contain the declaration of any types.

identification.xsd implements the UML conceptual schema defined in ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 6.5.3. It was created using the encoding rules defined in ISO 19118, ISO 19139.

https://schemas.isotc211.org/19115/-1/mri/1.3.0/identification.xsd contains the following classes:

  • AbstractMD_Identification

  • MD_DataIdentification

  • MD_Keywords

  • MD_KeywordClass

  • MD_RepresentativeFraction

  • MD_Resolution

  • MD_Usage

  • MD_AssociatedResource

https://schemas.isotc211.org/19115/-1/mri/1.3.0/identification.xsd contains references to the following codelists:

  • MD_KeywordTypeCode

  • DS_AssociationTypeCode

  • DS_InitiativeTypeCode

  • MD_TopicCategoryCode

The mri 1.3 namespace imports these other namespaces:

Name Standard Prefix Namespace Location Schema Location

Geographic Common Objects

gco

https://schemas.isotc211.org/19103/-/gco/1.2.0

gco.xsd

Geographic Common Extended

gcx

https://schemas.isotc211.org/19103/-/gcx/1.2.0

gcx.xsd

Geographic Markup Wrappers

gmw

https://schemas.isotc211.org/19163/-/gmw/1.1.0

gmw.xsd

LANguage localization

lan

https://schemas.isotc211.org/19115/-1/lan/1.3.0

lan.xsd

Metadata Common Classes

mcc

https://schemas.isotc211.org/19115/-1/mcc/1.3.0

mcc.xsd

CITation and Responsibility

cit

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

cit.xsd

Metadata Spatial Representation

mcc

https://schemas.isotc211.org/19115/-1/msr/1.3.0

msr.xsd

Geograpgic EXtent

gex

https://schemas.isotc211.org/19115/-1/gex/1.3.0

gex.xsd

Metadata Maintenance Information

mmi

https://schemas.isotc211.org/19115/-1/mri/1.3.0

mmi.xsd

Metadata Resource Distribution

mmi

https://schemas.isotc211.org/19115/-1/mrd/1.3.0

mrd.xsd

Metadata COnstraints

mco

https://schemas.isotc211.org/19115/-1/mco/1.3.0

mco.xsd

Schematron Validation Rules for mri 1.3

Schematron rules for validating instance documents required for a complete validation are:

Package name File name Location Constraint tested

Metadata Resource Identification

mri.sch

https://schemas.isotc211.org/19115/-1/mri/1.3.0/mri.sch

  • MD_MetadataScope/MD_Identification - MD_Metadata.metadataScope.MD_MetadataScope.resourceScope)='dataset' implies count(extent.geographicElement.EX_GeographicBoundingBox + extent.geographicElement.EX_GeographicDescription) \>= 1

  • MD_MetadataScope/MD_Identification - MD_Metadata.metadataScope.MD_Scope.resourceScope) = ('dataset' or 'series') implies topicCategory is mandatory

  • MD_DataIdentification - defaultLocale documented if resource includes textual information (test attempt only)

  • MD_DataIdentification - defaultLocale.PT_Locale.characterEncoding default value is UTF-8

  • MD_AssociatedResource - count(name + metadataReference

  • MD_Keywords/[SV_ServiceIdentification] - When the resource described is a service, one instance of MD_Keyword shall refer to the service taxonomy defined in ISO 19119

CITation and responsibility

cit.sch

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

  • CI_Individual - count(name + positionName) \> 0

  • CI_organisation - count(name + logo) \> 0

Geographic EXtent

gex.sch

https://schemas.isotc211.org/19115/-1/gex/1.3.0/gex.sch

  • MD_MetadataScope/MD_Identification - MD_Metadata.metadataScope.MD_MetadataScope.resourceScope)='dataset' implies count(extent.geographicElement.EX_GeographicBoundingBox + extent.geographicElement.EX_GeographicDescription) \>= 1

  • MD_MetadataScope/MD_Identification - MD_Metadata.metadataScope.MD_Scope.resourceScope) = ('dataset' or 'series') implies topicCategory is mandatory

  • MD_DataIdentification - defaultLocale documented if resource includes textual information (test attempt only)

  • MD_DataIdentification - defaultLocale.PT_Locale.characterEncoding default value is UTF-8

  • MD_AssociatedResource - count(name + metadataReference

  • MD_Keywords/[SV_ServiceIdentification] - When the resource described is a service, one instance of MD_Keyword shall refer to the service taxonomy defined in ISO 19119

Other schematron rule sets that maybe required for a complete validation (optional direct from MD_Metadata or indirectly through associations) are:

  • Metadata for Maintenance Information mmi.sch

  • metadata for SeRVice identification srv.sch

Working Versions

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