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When the metadata are included by-value in an Item element, then the metadata form the content of a Resource element. The case of by-reference is described in the "Object File Item" section. The Resource element is contained by a Component element. If there are several representations of the same metadata record, e.g., a version in MODS and a version in MARCXML, it is recommended to use separate Item elements for each representation.
MODS is mandatory; the MODS records MUST be included by-value. Notice that the guidelines of Driver still mention Simple Dublin Core. To be compliant with both the present Application Profile and Driver, separate metadata Items must be included, one for MODS and the other for Dublin Core.

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 <didl:Item>
   <didl:Descriptor>
    <didl:Statement mimeType="application/xml">
      <rdf:type rdf:resource="info:eu-repo/semantics/descriptiveMetadata" />
    </didl:Statement>
  </didl:Descriptor>
  <didl:Descriptor> <!-- This metadata instance has its own ID number -->
    <didl:Statement mimeType="application/xml">
      <dii:Identifier>urn:nbn:nl:ui:13-74836724783</dii:Identifier>
    </didl:Statement>
 </didl:Descriptor>
  <didl:Descriptor> <!-- This record has its own Modification date -->
    <didl:Statement mimeType="application/xml">
      <dcterms:modified>2006-12-20T10:29:12Z</dcterms:modified>
    </didl:Statement>
  </didl:Descriptor>
  <didl:Component>
     <didl:Resource mimeType="application/xml"> <!-- the MODS data -->
      <mods:mods
        xmlns:mods="http://www.loc.gov/mods/v3"
        xsi:schemaLocation=
          "http://www.loc.gov/mods/v3
           http://www.loc.gov/standards/mods/v3/mods-3-3.xsd">
        <mods:titleInfo>...</mods:titleInfo>
        <mods:name>...</mods:name>
        <mods:typeOfResource> ... </mods:typeOfResource>
          ...
      </mods:mods>
    </didl:Resource>
 </didl:Component>
</didl:Item>

...

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<didl:Item>
  ...

  <!-- Below this line one can find links to one or more digital objects -->
  <didl:Item> <!-- First Item for a File/Bitstream -->
    <didl:Descriptor>
      <didl:Statement mimeType="application/xml">
        <rdf:type rdf:resource="info:eu-repo/semantics/objectFile" />
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Object Item has its own persistent ID -->
      <didl:Statement mimeType="application/xml">
        <dii:Identifier>urn:nbn:nl:ui:13-36724783</dii:Identifier>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Item has its own Modification date -->
      <didl:Statement mimeType="application/xml">
        <dcterms:modified>2006-12-20T10:29:12Z</dcterms:modified>
      </didl:Statement>
    </didl:Descriptor>

    <didl:Component>
      <didl:Resource
        mimeType="application/pdf"
        ref="http://my.server.nl/report.pdf"/>
    </didl:Component>
  </didl:Item>

  <didl:Item> <!-- Second Item for a File/Bitstream -->
    <didl:Descriptor>
      <didl:Statement mimeType="application/xml">
        <rdf:type rdf:resource="info:eu-repo/semantics/objectFile" />
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Object Item has its own persistent ID -->
      <didl:Statement mimeType="application/xml">
        <dii:Identifier>urn:nbn:nl:ui:13-36724784</dii:Identifier>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Item has its own Modification date -->
      <didl:Statement mimeType="application/xml">
        <dcterms:modified>2006-12-20T10:29:12Z</dcterms:modified>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- this file is the appendix -->
      <didl:Statement mimeType="application/xml">
        <dc:description>Appendix</dc:description>
      </didl:Statement>
    </didl:Descriptor>
    ...
    <didl:Component>
      <didl:Resource
        mimeType="application/pdf"
        ref="http://my.server.nl/appendix.pdf"/>
    </didl:Component>
  </didl:Item>

  <didl:Item> <!-- Third Item for a File/Bitstream -->
    <didl:Descriptor>
      <didl:Statement mimeType="application/xml">
        <rdf:type rdf:resource="info:eu-repo/semantics/objectFile" />
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Object Item has its own persistent ID -->
      <didl:Statement mimeType="application/xml">
        <dii:Identifier>urn:nbn:nl:ui:13-36724785</dii:Identifier>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!-- This Item has its own Modification date -->
      <didl:Statement mimeType="application/xml">
        <dcterms:modified>2006-12-20T10:29:12Z</dcterms:modified>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!—- deposit date -->
      <didl:Statement mimeType="application/xml">
        <dcterms:issued>2010-12-01</dcterms:issued>
      </didl:Statement>
    </didl:Descriptor>
    <didl:Descriptor> <!—- embargo on file -->
      <didl:Statement mimeType="application/xml">
        <dcterms:available>2010-12-01</dcterms:available>
      </didl:Statement>
    </didl:Descriptor>
    ...
    <didl:Component>
      <didl:Resource
        mimeType="application/pdf"
        ref="http://my.server.nl/datasheets.xls"/>
    </didl:Component>
  </didl:Item>
</didl:Item>

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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. This Item element is optional. There should not be more than one Item of this type. The identifier element and modified elements are optional.

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<didl:Item>
  ...

  <!-- Below this line; an Item with a link to one optional Intermediate page -->
  <didl:Item>
    <didl:Descriptor>
      <didl:Statement mimeType="application/xml">
        <rdf:type rdf:resource="info:eu-repo/semantics/humanStartPage" />
      </didl:Statement>
    </didl:Descriptor>
    ...
    <didl:Component>
      <didl:Resource
         mimeType="text/html"
         ref="http://my.server.nl/mypub.html"/>
    </didl:Component>
  </didl:Item>
</didl:Item>

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