QGIS internal metadata example

qgis-metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<ResourceMetadata xmlns="http://qgis.org/resource-metadata/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://qgis.org/resource-metadata/1.0 qgis-resource-metadata.xsd">
	<identifier>1234</identifier>
	<parentidentifier>xyz</parentidentifier>
	<language>en-CA</language>
	<type>dataset</type>
	<title>roads</title>
	<abstract>my roads</abstract>
	<keywords vocabulary="GEMET">
		<keyword>kw1</keyword>
		<keyword>kw2</keyword>
	</keywords>
	<fees>None</fees>
	<accessconstraints>None<accessconstraints>
	<encoding>utf-8</encoding>
	<crs>EPSG:4326</crs>
	<extent>
		<spatial dimensions="2" crs="EPSG:4326" minx="-180" miny="-90" maxx="180" maxy="90"/>
		<temporal>
			<instant>2001-12-17T09:30:47Z</instant>
		</temporal>
	</extent>
	<contact>
		<name>John Smith</name>
		<organization>ACME</organization>
		<position>staff</position>
		<address>
			<type>postal</type>
			<address>123 Main Street</address>
			<city>anycity</city>
			<administrativearea>anyprovince</administrativearea>
			<postalcode>90210</postalcode>
			<country>Canada</country>
		</address>
		<voice>xx.xxx.xxx.xxxx</voice>
		<fax>xx.xxx.xxx.xxxx</fax>
		<email>foo@example.org</email>
		<role>pointOfContact</role>
	</contact>
	<links>
		<link name="geonode:roads" type="OGC:WMS" description="my GeoNode road layer" url="http://example.org/wms"/>
		<link name="geonode:roads" type="OGC:WFS" description="my GeoNode road layer" url="http://example.org/wfs"/>
		<link name="roads" type="WWW:LINK" description="full dataset download" url="http://example.org/roads.tgz" format="ESRI Shapefile" mimeType="application/gzip" size="283676"/>
	</links>
</ResourceMetadata>

qgis-resource-metadata.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:rm="http://qgis.org/resource-metadata/1.0" targetNamespace="http://qgis.org/resource-metadata/1.0" elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0">
	<xs:element name="ResourceMetadata" type="rm:ResourceMetadataType">
		<xs:annotation>
			<xs:documentation>Comment describing your root element</xs:documentation>
		</xs:annotation>
	</xs:element>
	<xs:complexType name="ResourceMetadataType">
		<xs:sequence>
			<xs:element name="identifier" type="xs:string"/>
			<xs:element name="parentidentifier" type="xs:string" minOccurs="0"/>
			<xs:element name="language" type="xs:string"/>
			<xs:element name="type" type="xs:string"/>
			<xs:element name="title" type="xs:string"/>
			<xs:element name="abstract" type="xs:string"/>
			<xs:element name="keywords" type="rm:keywordsType" minOccurs="0" maxOccurs="unbounded"/>
			<xs:element name="fees" type="xs:string" minOccurs="0"/>
			<xs:element name="constraints" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
			<xs:element name="rights" type="xs:string" minOccurs="0" maxOccurs="unbounded"/>
			<xs:element name="encoding" type="xs:string" minOccurs="0"/>
			<xs:element name="crs" type="xs:string"/>
			<xs:element name="extent" type="rm:extentType" maxOccurs="1"/>
			<xs:element name="contact" type="rm:contactType" maxOccurs="unbounded"/>
			<xs:element name="links" type="rm:linksType"/>
		</xs:sequence>
		<xs:attribute name="version" use="required" fixed="1.0"/>
	</xs:complexType>
	<xs:complexType name="keywordsType">
		<xs:sequence>
			<xs:element name="keyword" maxOccurs="unbounded"/>
		</xs:sequence>
		<xs:attribute name="vocabulary" type="xs:string"/>
	</xs:complexType>
	<xs:complexType name="extentType">
			<xs:sequence>
				<xs:element name="spatial" type="rm:spatialType" maxOccurs="unbounded"/>
				<xs:element name="temporal" type="rm:temporalType" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
	</xs:complexType>
	<xs:complexType name="spatialType">
		<xs:attribute name="dimensions" type="xs:integer" default="2"/>
		<xs:attribute name="crs" type="xs:string" use="required"/>
		<xs:attribute name="minx" type="xs:decimal" use="required"/>
		<xs:attribute name="miny" type="xs:decimal" use="required"/>
		<xs:attribute name="minz" type="xs:decimal" use="optional"/>
		<xs:attribute name="maxx" type="xs:decimal" use="required"/>
		<xs:attribute name="maxy" type="xs:decimal" use="required"/>
		<xs:attribute name="maxz" type="xs:decimal" use="optional"/>
	</xs:complexType>
	<xs:complexType name="temporalType">
		<xs:choice>
			<xs:element name="instant" type="xs:dateTime"/>
			<xs:element name="period" type="rm:periodType"/>
		</xs:choice>
	</xs:complexType>
	<xs:complexType name="periodType">
		<xs:sequence>
			<xs:element name="start" type="xs:dateTime"/>
			<xs:element name="end" type="xs:dateTime" minOccurs="0"/>
		</xs:sequence>
		<xs:attribute name="indeterminatePosition" type="xs:boolean"/>
	</xs:complexType>
	<xs:complexType name="contactType">
		<xs:sequence>
			<xs:element name="name" type="xs:string"/>
			<xs:element name="organization" type="xs:string" minOccurs="0"/>
			<xs:element name="position" type="xs:string" minOccurs="0"/>
			<xs:element name="address" type="rm:addressType" minOccurs="0"/>
			<xs:element name="voice" type="xs:string" minOccurs="0"/>
			<xs:element name="fax" type="xs:string" minOccurs="0"/>
			<xs:element name="email" type="xs:string" minOccurs="0"/>
			<xs:element name="role" type="xs:string" minOccurs="0"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="addressType">
		<xs:sequence>
			<xs:element name="type" type="xs:string" minOccurs="0"/>
			<xs:element name="address" type="xs:string" minOccurs="0"/>
			<xs:element name="city" type="xs:string" minOccurs="0"/>
			<xs:element name="administrativearea" type="xs:string" minOccurs="0"/>
			<xs:element name="postalcode" type="xs:string" minOccurs="0"/>
			<xs:element name="country" type="xs:string" minOccurs="0"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="linksType">
		<xs:sequence>
			<xs:element name="link" type="rm:linkType" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>
	<xs:complexType name="linkType">
		<xs:attributeGroup ref="rm:linkAttrs"/>
	</xs:complexType>
	<xs:attributeGroup name="linkAttrs">
		<xs:attribute name="name" type="xs:string"/>
		<xs:attribute name="type" type="xs:string"/>
		<xs:attribute name="description" type="xs:string" use="optional"/>
		<xs:attribute name="url" type="xs:anyURI" use="required"/>
		<xs:attribute name="format" type="xs:string" use="optional"/>
		<xs:attribute name="mimeType" type="xs:string" use="optional"/>
		<xs:attribute name="size" type="xs:string" use="optional"/>
	</xs:attributeGroup>
</xs:schema>