Page History

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1. The top level Item element MUST contain two Descriptor elements. One Descriptor element for the (Persistent) Identifier and one Descriptor element for the modification date.
2. Modifications MUST be made visible in changing the modification date.
3. Changes in modification date in child Item elements MUST be propagated to the parent Item element.
4. When a Descriptor element for modification date is used also an Descriptor element MUST be used (they go in pairs). Rationale: To compare similar harvested Item elements on modification date, an identifier must be added.
5. For the second level Item elements the Object type Descriptor element MUST be used.The Identifier and Modification date MAY be used.

   Example on level one	<didl:DIDL ...> <didl:Item> <didl:Descriptor>...</didl:Descriptor> <!-- Identification, mandatory --> <didl:Descriptor>...</didl:Descriptor> <!-- Modification date, mandatory --> <didl:Item>...</didl:Item> <didl:Item>...</didl:Item> <didl:Item>...</didl:Item> ... </didl:Item> </didl:DIDL>
   Example on level two Object type added	<didl:DIDL ...> <didl:Item> <didl:Item> <didl:Descriptor>...</didl:Descriptor> <!-- Identification, optional --> <didl:Descriptor>...</didl:Descriptor> <!-- Modification date, optional --> <didl:Descriptor>...</didl:Descriptor> <!-- Object type, mandatory --> ... </didl:Item> <didl:Item>...</didl:Item> <didl:Item>...</didl:Item> <didl:Item>...</didl:Item> ... </didl:Item> </didl:DIDL>

   Anchor
   _Toc184637904 _Toc184637904

   Item 'Identifier' Statement

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The DIDL document contains at least one metadata Item element. This metadata can be in different formats, simple Dublin Core, qualified Dublin Core, MODS, MARC21, etc. This can be done by refference (link to metadata XML) or by value (embedding the metadata in the DIDL XML). The use of simple Dublin Core is mandatory.
The second Item contains one or more links to the digital objects, and the third Item contains a link to a jump-off page.

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The second Item ObjectType contains a link to one digital object. This is 'by ref', and the Item element has an ObjectType statement with an info:eu-repo/semantics/objectFile URI. An Item can occur more then once, see the following:

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The third ObjectType Item element contains a link to the jump-off page or intermediate page. This is done in the same way as for the Object Item element. Currently this is restricted to 1 Item of this type; there are no identifier elements, nor modification date elements present. This Item element is optional:

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See for web presentation of this record via jump-off page:
http://igitur-archive.library.uu.nl/dissertations/2006-1206-200250/UUindex.html

<?xml version="1.0" encoding="UTF-8" ?>
<OAI-PMH
xmlns="http://www.openarchives.org/OAI/2.0/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.openarchives.org/OAI/2.0/"" rel="nofollow"linktype="raw" wikidestination="http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"" originalalias="http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"" >http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"
>
<responseDate>2006-12-20T10:29:11Z</responseDate>
<request
identifier="oai:dspace.library.uu.nl:1874/15290"
metadataPrefix="didl"
verb="GetRecord">
http://dspace.library.uu.nl:8080/dspace-oai/request
</request>
<GetRecord>
<record>
<header>
<identifier>oai:dspace.library.uu.nl:1874/15290</identifier>
<datestamp>2006-12-06T19:00:49Z</datestamp>
<setSpec>hdl_1874_69</setSpec>
<setSpec>hdl_1874_12233</setSpec>
</header>
<metadata>
<!-- Introducing the DIDL document. -->
<!--
<didl:DIDL> is the wrapper or container that can be seen as an autonomous entity
that can exist outside the OAI-PMH context.
The DIDLDocumentId attribute (optional) is the DIDL identifier
and it CAN be the same as the record Identifier!
Leave it out if you have no dedicated DIDL identifier.
-->
<didl:DIDL
DIDLDocumentId=" urn:NBN:nl:ui:10-1705/6748398729821"
xmlns:didl="urn:mpeg:mpeg21:2002:02-DIDL-NS"
xmlns:dii="urn:mpeg:mpeg21:2002:01-DII-NS"
xmlns:dip="urn:mpeg:mpeg21:2005:01-DIP-NS"
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
urn:mpeg:mpeg21:2002:02-DIDL-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/did/didl.xsd
urn:mpeg:mpeg21:2002:01-DII-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dii/dii.xsd
urn:mpeg:mpeg21:2005:01-DIP-NS "" rel="nofollow"linktype="raw" wikidestination="http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dip/dip.xsd"" originalalias="http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dip/dip.xsd"" >http:http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dip/dip.xsd"
>
<!-- The Item is the autonomous compound complex entity that is a representation of a work-->
<didl:Item>
<didl:Descriptor>
<didl:Statement mimeType="application/xml">
<dii:Identifier> urn:NBN:nl:ui:10-1705/6748398729821</dii:Identifier>
</didl:Statement>
</didl:Descriptor>
<didl:Descriptor>
<didl:Statement mimeType="application/xml">
<dcterms:modified>2006-12-20T10:29:12Z</dcterms:modified>
</didl:Statement>
</didl:Descriptor>
<didl:Component>
<!-- Actual resource of Item; Location of the DIDL document -->
<didl:Resource mimeType="application/xml"
ref="http://localhost/DIDLdocument-v2.3.xml"/>
</didl:Component>
<didl:Component>
<!-- Alternate resource of Item -->
<didl:Resource mimeType="application/xml"
ref="http://remote-server.nl/This_Item_represented_in_METS.xml"/>
</didl:Component>
<didl:Component>
<!-- Alternate resource of Item -->
<didl:Resource mimeType="application/xml"
ref="http://dx.doi.com/10.1705/6748398729821"/>
</didl:Component>
<didl:Component>
<!-- Alternate resource of Item -->
<didl:Resource mimeType="application/xml"
ref="http://ORE.resolve.org/?id={3F2504E0-4F89-11D3-9A0C-0305E82C3301}"/>
</didl:Component>
<!-- Introducing the area for metadata -->
<didl:Item>
<didl:Descriptor> <!-- ObjectType of Item -->
<didl:Statement mimeType="application/xml">
<dip:ObjectType>info:eu-repo/semantics/descriptiveMetadata</dip:ObjectType>
</didl:Statement>
</didl:Descriptor>
<didl:Component> <!-- Actual resource of Item -->
<didl:Resource mimeType="application/xml">
<oai_dc:dc
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xsi:schemaLocation="
http://www.openarchives.org/OAI/2.0/oai_dc/
http://www.openarchives.org/OAI/2.0/oai_dc.xsd
http://purl.org/dc/elements/1.1/
"" rel="nofollow"linktype="raw" wikidestination="http://dublincore.org/schemas/xmls/simpledc20021212.xsd"" originalalias="http://dublincore.org/schemas/xmls/simpledc20021212.xsd"" >http://dublincore.org/schemas/xmls/simpledc20021212.xsd"
>
<dc:title>Neonatal Glucocorticoid Treatment and Predisposition to Cardiovascular Disease in Rats</dc:title>
<dc:creator>Bal, M.P.</dc:creator>
<dc:subject>Geneeskunde</dc:subject>
<dc:subject>glucocorticoid</dc:subject>
<dc:subject>dexamethasone</dc:subject>
<dc:subject><!--etc...--></dc:subject>
<dc:subject>cellular hypertrophy</dc:subject>
<dc:subject>contractile proteins</dc:subject>
<dc:description>The present thesis describes the issue of "neonatal glucocorticoid treatment and predisposition to cardiovascular disease in rats". </dc:description>
<dc:publisher>Utrecht University</dc:publisher>
<dc:date>2006-12-12</dc:date>
<dc:type>Doctoral thesis</dc:type>
<dc:format>image/jpeg</dc:format>
<dc:format>image/pdf</dc:format>
<dc:format>image/pdf</dc:format>
<dc:format><!--etc...--></dc:format>
<dc:identifier>http://igitur-archive.library.uu.nl/dissertations/2006-1206-200250/UUindex.html</dc:identifier>
<dc:language>en</dc:language>
<dc:rights>(c) Bal, M.P., 2006</dc:rights>
</oai_dc:dc>
</didl:Resource>
</didl:Component>
</didl:Item>
<!-- Introducing the area for MODS metadata -->
<didl:Item>
<didl:Descriptor> <!-- ObjectType of Item -->
<didl:Statement mimeType="application/xml">
<dip:ObjectType>info:eu-repo/semantics/descriptiveMetadata</dip:ObjectType>
</didl:Statement>
</didl:Descriptor>
<didl:Component>
<didl:Resource mimeType="application/xml">
<mods
version="3.2"
xmlns="http://www.loc.gov/mods/v3"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.loc.gov/mods/v3
http://www.loc.gov/standards/mods/v3/mods-3-2.xsd">
<titleInfo xml:lang="en">
<title> Neonatal Glucocorticoid Treatment and Predisposition to Cardiovascular Disease in Rats </title>
</titleInfo>
<name type="personal" ID="n1">
<namePart type="family"> Bal </namePart>
<namePart type="given">M.P.</namePart>
<role>
<roleTerm authority="marcrelator" type="code">aut</roleTerm>
</role>
</name>
<name type="personal" ID="n2">
<namePart type="family">Winter, de</namePart>
<namePart type="given">R.J.</namePart>
<role>
<roleTerm authority="marcrelator" type="code">aut</roleTerm>
</role>
</name>
<extension>
<daiList
xmlns:dai="info:eu-repo/dai"
xsi:schemaLocation="info:eu-repo/dai
http://www.surfgroepen.nl/sites/oai/metadata/Shared%20Documents/dai-extension.xsd">
<identifier
IDref="n2"
authority="info:eu-repo/dai/nl">157455590</identifier>
<identifier
IDref="n1"
authority="info:eu-repo/dai/nl">123456678</identifier>
</daiList>
</extension>
</mods>
</didl:Resource>
</didl:Component>
</didl:Item>
<!-- Introducing the area for digital fulltext objects -->
<!--

Bitstream no: \[0\]

Bitstream no: \[1\]

Bitstream no: \[2\]

Bitstream no: \[3\]

Bitstream no: \[etc...\]