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Browse: Home / v2 / Elements / pbcoreDescriptionDocument / pbcoreExtension

pbcoreExtension

Description:

The pbcoreExtension element is a container to accomodate metadata from external systems. Use it to supplement other sub-elements of ‘pbcoreDescriptionDocument’.

XPATH LOCATION:

/ pbcoreDescriptionDocument / pbcoreExtension

USAGE RULES:

Occurs:

zero or more times

Must Contain:

2 elements, specific:

May Contain:

Contained by:

Contained with:

[Any elements used MUST appear in this relative order]

EXAMPLES:

<pbcoreExtension>
           <extensionWrap>
                <extensionElement>RightsHolderName</extensionElement>
                <extensionValue>WNET.org</extensionValue>
               <extensionAuthorityUsed>http://www.loc.gov/standards/rights/METSRights.xsd</extensionAuthorityUsed>
           </extensionWrap>   
       </pbcoreExtension>

2 responses to “pbcoreExtension”

  1. Dave Rice
    Dave Rice January 4, 2012 at 10:28 pm |

    The documentation and the schema contradict each other here. The documentation on this page says that pbcoreExtension must contain “Must Contain: 2 elements, specific: extensionWrap extensionEmbedded”. But the schema presents extensionWrap and extensionEmbedded in xsd:choice which prevents the use of both of the 2 elements. So the documentation that it must contain those two elements is specifically prevented by the schema.

  2. Dave Rice
    Dave Rice January 4, 2012 at 10:47 pm |

    Is there any semantic difference between using multiple embeddedWrap elements within pbcoreExtension versus using a single embeddedWrap element in many pbcoreExtension elements? I don’t understand the role that one or many pbcoreExtension elements play in containing one or many embeddedWrap elements. So either why is pbcoreExtension there? Or why is the choice sub-element unbounded.

    Which is better:

    <pbcoreExtension>
    <extensionWrap>
    <extensionElement>countryOfCreation</extensionElement>
    <extensionValue>US</extensionValue>
    <extensionAuthorityUsed>CAVPP</extensionAuthorityUsed>
    </extensionWrap>
    </pbcoreExtension>
    <pbcoreExtension>
    <extensionWrap>
    <extensionElement>projectNote</extensionElement>
    <extensionValue>California Audiovisual Preservation Project</extensionValue>
    <extensionAuthorityUsed>CAVPP</extensionAuthorityUsed>
    </extensionWrap>
    </pbcoreExtension>

    or

    <pbcoreExtension>
    <extensionWrap>
    <extensionElement>countryOfCreation</extensionElement>
    <extensionValue>US</extensionValue>
    <extensionAuthorityUsed>CAVPP</extensionAuthorityUsed>
    </extensionWrap>
    <extensionWrap>
    <extensionElement>projectNote</extensionElement>
    <extensionValue>California Audiovisual Preservation Project</extensionValue>
    <extensionAuthorityUsed>CAVPP</extensionAuthorityUsed>
    </extensionWrap>
    </pbcoreExtension>

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