...
- 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.
- Modifications MUST be made visible in changing the modification date.
- Changes in modification date in child Item elements MUST be propagated to the parent Item element.
- 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.
- 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>
Item 'Identifier' StatementAnchor _Toc184637904 _Toc184637904
...
<didl:DIDL ...> |
...
<didl:Item> |
...
| <didl:Item> |
|
|
1 |
|
2 |
|
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|
3 |
|
|
|
|
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4 | <didl:Item> |
...
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
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<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="
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<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>
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<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>
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<!- - 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
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.loc.gov/mods/v3
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</titleInfo>
<name type="personal" ID="n1">
<namePart type="family"> Bal </namePart>
<namePart type="given">M.P.</namePart>
<role>
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</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
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xsi:schemaLocation="info:eu-repo/dai
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<identifier
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authority="info:eu-repo/dai/nl">157455590</identifier>
<identifier
IDref="n1"
authority="info:eu-repo/dai/nl">123456678</identifier>
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