ISO
ISO TC 211 Geographic information/Geomatics Committee site

XML schema representations of geographic technology standards

Metadata for Resource Distribution (MRD)

Metadata for Resource Distribution (MRD) Version: 1.3

UML diagram of Metadata for Resource Distribution classes in the mrd namespace
Figure 1. Classes in the mrd namespace
UML diagram of Metadata for Resource Distribution codelists in the mrd namespace
Figure 2. Code list(s) in the mrd namespace

Description

MRD 1.3 is an XML Schema implementation derived from ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 6.5.11. It includes elements specifying how a resource is accessed. The XML schema was encoded using the rules described in ISO/TS 19139:2007.

XML Namespace for mrd 1.3

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

XML Schema for mrd 1.3

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

distribution.xsd implements the UML conceptual schema defined in ISO 19115-1, Geographic Information - Metadata - Part 1: Fundamentals, Clause 6.5.11. It was created using the encoding rules defined in ISO 19118, ISO 19139.

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

  • MD_Distribution

  • MD_DigitalTransferOptions

  • MD_Distributor

  • MD_Format

  • MD_Medium

  • MD_StandardOrderProcess

https://schemas.isotc211.org/19115/-1/mrd/1.3.0/distribution.xsd contains reference(s) to the following codelist:

  • MD_MediumFormatCode

The mrd 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

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

Schematron Validation Rules for mrd 1.3

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

Package name File name Location Constraint tested

Metadata for Resource Distribution

mrd.sch

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

  • MD_Medium - if density used then count(densityUnits) \> 0

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

Schematron Validation Rules for mrd 1.3

Schematron rules for validating instance documents of the mrd 1.3 namespace are in mrd.sch. Other schematron rule sets that are required for a complete validation are: gco.sch, and mcc.sch

Working Versions

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