Metadata for Resource Lineage (MRL)

Metadata for Resource Lineage (MRL) Version: 1.3

UML diagram of Metadata for Resource Lineage classes in the mrl namespace
Figure 1. Classes in the mrl namespace

Description

MRL 1.3 is an XML Schema implementation derived from ISO 19115-1, Geographic Information - Metadata - Part 2: Extensions for acquisition and processing, Clause 6.3.3. It includes elements for describing resource lineage. The XML schema was encoded using the rules described in ISO/TS 19139:2007.

XML Namespace for mrl 1.3

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

XML Schema for mrl 1.3

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

lineage.xsd implements the UML conceptual schema defined in ISO 19115-1, Geographic Information - Metadata - Part 2: Extensions for acquisition and processing, Clause 6.3.3. It was created using the encoding rules defined in ISO 19118, ISO 19139.

  • LI_Lineage

  • LI_ProcessStep

  • LI_Source

lineageImagery.xsd implements the UML conceptual schema defined in ISO 19115-2, Geographic Information - Metadata - Part 2: Extensions for acquisition and processing, Clause 6.3.3. Information about lineageImagery.xsd can be obtained from https://schemas.isotc211.org/19115/-2/mrl/2.2.0/

The mrl 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 Markup Wrappers

gmw

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

gmw.xsd

Metadata Common Classes

mcc

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

mcc.xsd

Metadata for Services

srv

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

srv.xsd

CITation and Responsibility

cit

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

cit.xsd

Geospatial MetaLanguage

gml

http://schemas.opengis.net/gml/3.2.1/gml.xsd

http://schemas.opengis.net/gml/3.2.1/gml.xsd

Schematron Validation Rules for mrl 1.3

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

Package name File name Location Constraint tested

Metadata for Resource Lineage

mrl.sch

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

  • LI_Source - count(description + scope) \> 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

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

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

  • Metadata for Reference Systems mrs.sch

Schematron Validation Rules for mrl 1.3

Schematron rules for validating instance documents of the mrl 1.3 namespace are in mrl.sch.

Working Versions

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