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<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:dcmitype="http://purl.org/dc/dcmitype/"
targetNamespace="http://purl.org/dc/terms/"
xmlns="http://purl.org/dc/terms/"
elementFormDefault="qualified"
attributeFormDefault="unqualified">
<xs:annotation>
<xs:documentation xml:lang="en">
DCterms XML Schema
XML Schema for http://purl.org/dc/terms/ namespace
Created 2006-01-06
Created by
Tim Cole (t-cole3@uiuc.edu)
Tom Habing (thabing@uiuc.edu)
Jane Hunter (jane@dstc.edu.au)
Pete Johnston (p.johnston@ukoln.ac.uk),
Carl Lagoze (lagoze@cs.cornell.edu)
This schema declares XML elements for the DC elements and
DC element refinements from the http://purl.org/dc/terms/ namespace.
It reuses the complexType dc:SimpleLiteral, imported from the dc.xsd
schema, which permits simple element content, and makes the xml:lang
attribute available.
This complexType permits the derivation of other complexTypes
which would permit child elements.
DC elements are declared as substitutable for the abstract element dc:any, and
DC element refinements are defined as substitutable for the base elements
which they refine.
This means that the default type for all XML elements (i.e. all DC elements and
element refinements) is dc:SimpleLiteral.
Encoding schemes are defined as complexTypes which are restrictions
of the dc:SimpleLiteral complexType. These complexTypes restrict
values to an appropriates syntax or format using data typing,
regular expressions, or enumerated lists.
In order to specify one of these encodings an xsi:type attribute must
be used in the instance document.
Also, note that one shortcoming of this approach is that any type can be
applied to any of the elements or refinements. There is no convenient way
to restrict types to specific elements using this approach.
</xs:documentation>
</xs:annotation>
<xs:import namespace="http://www.w3.org/XML/1998/namespace"
schemaLocation="http://www.w3.org/2001/03/xml.xsd">
</xs:import>
<xs:import namespace="http://purl.org/dc/elements/1.1/"
schemaLocation="dc.xsd"/>
<xs:import namespace="http://purl.org/dc/dcmitype/"
schemaLocation="dcmitype.xsd"/>
<xs:element name="alternative" substitutionGroup="dc:title"/>
<xs:element name="tableOfContents" substitutionGroup="dc:description"/>
<xs:element name="abstract" substitutionGroup="dc:description"/>
<xs:element name="created" substitutionGroup="dc:date"/>
<xs:element name="valid" substitutionGroup="dc:date"/>
<xs:element name="available" substitutionGroup="dc:date"/>
<xs:element name="issued" substitutionGroup="dc:date"/>
<xs:element name="modified" substitutionGroup="dc:date"/>
<xs:element name="dateAccepted" substitutionGroup="dc:date"/>
<xs:element name="dateCopyrighted" substitutionGroup="dc:date"/>
<xs:element name="dateSubmitted" substitutionGroup="dc:date"/>
<xs:element name="extent" substitutionGroup="dc:format"/>
<xs:element name="medium" substitutionGroup="dc:format"/>
<xs:element name="isVersionOf" substitutionGroup="dc:relation"/>
<xs:element name="hasVersion" substitutionGroup="dc:relation"/>
<xs:element name="isReplacedBy" substitutionGroup="dc:relation"/>
<xs:element name="replaces" substitutionGroup="dc:relation"/>
<xs:element name="isRequiredBy" substitutionGroup="dc:relation"/>
<xs:element name="requires" substitutionGroup="dc:relation"/>
<xs:element name="isPartOf" substitutionGroup="dc:relation"/>
<xs:element name="hasPart" substitutionGroup="dc:relation"/>
<xs:element name="isReferencedBy" substitutionGroup="dc:relation"/>
<xs:element name="references" substitutionGroup="dc:relation"/>
<xs:element name="isFormatOf" substitutionGroup="dc:relation"/>
<xs:element name="hasFormat" substitutionGroup="dc:relation"/>
<xs:element name="conformsTo" substitutionGroup="dc:relation"/>
<xs:element name="spatial" substitutionGroup="dc:coverage"/>
<xs:element name="temporal" substitutionGroup="dc:coverage"/>
<xs:element name="audience" substitutionGroup="dc:any"/>
<xs:element name="accrualMethod" substitutionGroup="dc:any"/>
<xs:element name="accrualPeriodicity" substitutionGroup="dc:any"/>
<xs:element name="accrualPolicy" substitutionGroup="dc:any"/>
<xs:element name="instructionalMethod" substitutionGroup="dc:any"/>
<xs:element name="provenance" substitutionGroup="dc:any"/>
<xs:element name="rightsHolder" substitutionGroup="dc:any"/>
<xs:element name="mediator" substitutionGroup="audience"/>
<xs:element name="educationLevel" substitutionGroup="audience"/>
<xs:element name="accessRights" substitutionGroup="dc:rights"/>
<xs:element name="license" substitutionGroup="dc:rights"/>
<xs:element name="bibliographicCitation" substitutionGroup="dc:identifier"/>
<xs:complexType name="LCSH">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="MESH">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="DDC">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="LCC">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="UDC">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="Period">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="W3CDTF">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:union memberTypes="xs:gYear xs:gYearMonth xs:date xs:dateTime"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="DCMIType">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="dcmitype:DCMIType"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="IMT">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="URI">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:anyURI"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="ISO639-2">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="RFC1766">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:language"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="RFC3066">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:language"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="Point">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="ISO3166">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="Box">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="TGN">
<xs:simpleContent>
<xs:restriction base="dc:SimpleLiteral">
<xs:simpleType>
<xs:restriction base="xs:string"/>
</xs:simpleType>
<xs:attribute ref="xml:lang" use="prohibited"/>
</xs:restriction>
</xs:simpleContent>
</xs:complexType>
<xs:group name="elementsAndRefinementsGroup">
<xs:annotation>
<xs:documentation xml:lang="en">
This group is included as a convenience for schema authors
who need to refer to all the DC elements and element refinements
in the http://purl.org/dc/elements/1.1/ and
http://purl.org/dc/terms namespaces.
N.B. Refinements available via substitution groups.
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="dc:any" />
</xs:choice>
</xs:sequence>
</xs:group>
<xs:complexType name="elementOrRefinementContainer">
<xs:annotation>
<xs:documentation xml:lang="en">
This is included as a convenience for schema authors who need to define a root
or container element for all of the DC elements and element refinements.
</xs:documentation>
</xs:annotation>
<xs:choice>
<xs:group ref="elementsAndRefinementsGroup"/>
</xs:choice>
</xs:complexType>
</xs:schema>
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This is a picture of John still in the cubicled environment of the Northern Virginia tech world. There are great software jobs there, but the traffic is horrible! He has since retired, or really, started a new, freer lifestyle. He now travels and takes photographs. At home, he is involved in a number of community activities including work at the Historical Society of Frederick County (MD) where he has helped preserve historic documents and photographs by making photographic copies. Some of them are posted on the HSFC photo catalog website. He is fascinated by the new ability, using applications like Google Earth, to link photos to geographic locations. This adds a new dimension to photography, which he is working to develop. These pursuits, which require the ability to access and manage photo metadata, are a major motivation for getting involved as deeply as he did in this exciting topic.
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