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cc-devel - Re: [cc-devel] cc-devel Digest, Vol 58, Issue 4

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Subject: Developer discussion for Creative Commons technology and tools

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  • From: YongShik Lee <exraction AT hotmail.com>
  • To: cc-devel AT lists.ibiblio.org, cc-devel AT lists.ibiblio.org
  • Subject: Re: [cc-devel] cc-devel Digest, Vol 58, Issue 4
  • Date: Sun, 11 Jul 2010 20:22:59 +0900



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>Today's Topics:
>
> 1. Re: ccREL in OAI-PMH (Nathan Yergler)
> 2. Re: ccREL in OAI-PMH (Maarten Zeinstra)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Tue, 29 Jun 2010 15:14:04 -0700
>From: Nathan Yergler <nathan AT creativecommons.org>
>To: Maarten Zeinstra <mz AT kl.nl>
>Cc: cc-devel AT lists.ibiblio.org
>Subject: Re: [cc-devel] ccREL in OAI-PMH
>Message-ID:
> <AANLkTimYOyNxY89qgooMFsDsO9JrvVIL4yd6rhFBc45d AT mail.gmail.com>
>Content-Type: text/plain; charset=windows-1252
>
>That makes sense to me, Maarten.
>
>NRY
>
>On Tue, Jun 29, 2010 at 4:58 AM, Maarten Zeinstra <mz AT kl.nl> wrote:
>> Hi Nathan,
>> I used this as my starting point:
>> http://www.openarchives.org/OAI/2.0/rdf.xsd
>> which is the structure to include rdf in the OAI protocol
>> I derived from that that construct needs to have the following form:
>> <rdf:RDF
>> ??xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
>> ??xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns#
>> ?http://www.openarchives.org/OAI/2.0/rdf.xsd";>
>> </rdf:RDF:>
>> Then I probably made a mistake by replacing
>> http://www.openarchives.org/OAI/2.0/rdf.xsd
>> with
>> http://creativecommons.org/ns#
>> instead of replacing the first
>> http://www.w3.org/1999/02/22-rdf-syntax-ns#
>> I am equally not sure about the schemalocation.
>> Probably the right way to use ccREL here is:
>> <rdf:RDF
>> ??xmlns:cc="http://creativecommons.org/ns#";
>> ??xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
>> ??xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns#
>> ?http://www.openarchives.org/OAI/2.0/rdf.xsd";>
>> </rdf:RDF:>
>> Would you agree?
>> Maarten Zeinstra
>> Kennisland | Knowledgeland
>>
>> T: +31.20.575.6720 |?E: mz AT kl.nl
>> www.kennisland.nl?|?www.knowledgeland.org
>>
>> On Jun 28, 2010, at 19:19 , Nathan Yergler wrote:
>>
>> Hi Maarten,
>>
>> We do not currently have an XSD for the CC namespace, so assuming you
>> can include RDF directly, that seems like the easiest way to get
>> started. ?Note that I'm not an expert on OAI-PMH, so I'm not certain
>> that's possible.
>>
>> That said, the example you gave seems a little strange to me. ?In the
>> rdf:RDF element, you declare the rdf as
>> "http://www.w3.org/1999/02/22-rdf-syntax-ns#";. ?Under normal RDF/XML
>> rules (assuming those apply here) "rdf:attributionName" would be
>> interpreted as http://www.w3.org/1999/02/22-rdf-syntax-ns#attributionName.
>> I don't think that's what you're going for. ?I'd expect to see
>> something like:
>>
>> <rdf:RDF
>> xmlns:rdf=?http://www.w3.org/1999/02/22-rdf-syntax-ns#?
>> xmlns:cc="http://creativecommons.org/ns#";>
>>
>> and then "cc:attributionName", "cc:attributionUrl", etc. ?I'm also not
>> clear what the point of xsi:schemaLocation is on rdf:RDF.
>>
>> Apologies if my comments reveal some deep-seated misunderstanding of
>> OAI-PMH. ?It'd be great to have a functional example of CC REL in
>> OAI-PMH, so I'd love to work through the issues and get this
>> documented.
>>
>> Regards,
>>
>> Nathan
>>
>>
>> On Mon, Jun 28, 2010 at 7:35 AM, Maarten Zeinstra <mz AT kl.nl> wrote:
>>
>> Hello list,
>>
>> I'm trying to make an implementation of ccREL for OAI-PMH to communicate
>>
>> specific ccREL information. I could not find examples or explanations how
>>
>> this could be added so I thought I post it on the list.
>>
>> I've used the standard RDF implementation to bypass the need to have an
>> xsd,
>>
>> which as far as I know there is none of ccREL is there?
>>
>> That would result to a record that would like this? Wouldn't it?
>>
>> <record>
>>
>> <header>
>>
>> <identifier>...</identifier>
>>
>> <datestamp>1962-05-04T00:00:00Z</datestamp>
>>
>> </header>
>>
>> <metadata>
>>
>> <oai_dc:dc xsi:schemaLocation="
>>
>> http://www.openarchives.org/OAI/2.0/oai_dc/
>>
>> http://www.openarchives.org/OAI/2.0/oai_dc.xsd";>
>>
>> ....
>>
>> </oai_dc:dc>
>>
>> <rdf:RDF
>>
>> xmlns:rdf=?http://www.w3.org/1999/02/22-rdf-syntax-ns#?
>>
>> xsi:schemaLocation=
>>
>> ?http://www.w3.org/1999/02/22-rdf-syntax-ns#
>>
>> http://creativecommons.org/ns#?>
>>
>> <RDF:attributionName>
>>
>> [maker]
>>
>> </RDF:attributionName>
>>
>> <RDF:attributionURL>
>>
>> [locatie op openbeelden.nl]
>>
>> </RDF:attributionURL>
>>
>> <RDF:license>
>>
>> [licentie url]
>>
>> </RDF:license>
>>
>> </rdf:RDF>
>>
>> </metadata>
>>
>> </record>
>>
>> Best,
>>
>> Maarten Zeinstra
>>
>> Kennisland | Knowledgeland
>>
>> T: +31.20.575.6720 |?E: mz AT kl.nl
>>
>> www.kennisland.nl?|?www.knowledgeland.org
>>
>> _______________________________________________
>>
>> cc-devel mailing list
>>
>> cc-devel AT lists.ibiblio.org
>>
>> http://lists.ibiblio.org/mailman/listinfo/cc-devel
>>
>>
>>
>>
>>
>
>
>------------------------------
>
>Message: 2
>Date: Wed, 30 Jun 2010 16:37:25 +0200
>From: Maarten Zeinstra <mz AT kl.nl>
>To: Nathan Yergler <nathan AT creativecommons.org>
>Cc: cc-devel AT lists.ibiblio.org
>Subject: Re: [cc-devel] ccREL in OAI-PMH
>Message-ID: <0ECB3967-948E-4D7E-B15E-0D0CA597E9A6 AT kl.nl>
>Content-Type: text/plain; charset="windows-1252"
>
>Thanks I will use it like this for the moment,
>
>Would it be a good idea to look into an xsd for ccREL?
>
>There is already a good human readable guideline, but as far as I can find
>no automated way of checking the validity of data structured in ccREL.
>
>Looking deeper into OAI-PMH I see that they have some structures available
>to put rights informationan, although this refers to the metadata itself not
>the object is describes.
>Adoption of ccREL in a future version of OAI-PMH could benefit the use of
>ccREL greatly as well as giving archives a way to more accurately describes
>the rights status of the works they put out there.
>
>Cheers,
>
>Maarten Zeinstra
>
>Kennisland | Knowledgeland
>T: +31.20.575.6720 | E: mz AT kl.nl
>www.kennisland.nl | www.knowledgeland.org
>
>On Jun 30, 2010, at 24:14 , Nathan Yergler wrote:
>
>> That makes sense to me, Maarten.
>>
>> NRY
>>
>> On Tue, Jun 29, 2010 at 4:58 AM, Maarten Zeinstra <mz AT kl.nl> wrote:
>>> Hi Nathan,
>>> I used this as my starting point:
>>> http://www.openarchives.org/OAI/2.0/rdf.xsd
>>> which is the structure to include rdf in the OAI protocol
>>> I derived from that that construct needs to have the following form:
>>> <rdf:RDF
>>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
>>> xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns#
>>> http://www.openarchives.org/OAI/2.0/rdf.xsd";>
>>> </rdf:RDF:>
>>> Then I probably made a mistake by replacing
>>> http://www.openarchives.org/OAI/2.0/rdf.xsd
>>> with
>>> http://creativecommons.org/ns#
>>> instead of replacing the first
>>> http://www.w3.org/1999/02/22-rdf-syntax-ns#
>>> I am equally not sure about the schemalocation.
>>> Probably the right way to use ccREL here is:
>>> <rdf:RDF
>>> xmlns:cc="http://creativecommons.org/ns#";
>>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
>>> xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns#
>>> http://www.openarchives.org/OAI/2.0/rdf.xsd";>
>>> </rdf:RDF:>
>>> Would you agree?
>>> Maarten Zeinstra
>>> Kennisland | Knowledgeland
>>>
>>> T: +31.20.575.6720 | E: mz AT kl.nl
>>> www.kennisland.nl | www.knowledgeland.org
>>>
>>> On Jun 28, 2010, at 19:19 , Nathan Yergler wrote:
>>>
>>> Hi Maarten,
>>>
>>> We do not currently have an XSD for the CC namespace, so assuming you
>>> can include RDF directly, that seems like the easiest way to get
>>> started. Note that I'm not an expert on OAI-PMH, so I'm not certain
>>> that's possible.
>>>
>>> That said, the example you gave seems a little strange to me. In the
>>> rdf:RDF element, you declare the rdf as
>>> "http://www.w3.org/1999/02/22-rdf-syntax-ns#";. Under normal RDF/XML
>>> rules (assuming those apply here) "rdf:attributionName" would be
>>> interpreted as http://www.w3.org/1999/02/22-rdf-syntax-ns#attributionName.
>>> I don't think that's what you're going for. I'd expect to see
>>> something like:
>>>
>>> <rdf:RDF
>>> xmlns:rdf=?http://www.w3.org/1999/02/22-rdf-syntax-ns#?
>>> xmlns:cc="http://creativecommons.org/ns#";>
>>>
>>> and then "cc:attributionName", "cc:attributionUrl", etc. I'm also not
>>> clear what the point of xsi:schemaLocation is on rdf:RDF.
>>>
>>> Apologies if my comments reveal some deep-seated misunderstanding of
>>> OAI-PMH. It'd be great to have a functional example of CC REL in
>>> OAI-PMH, so I'd love to work through the issues and get this
>>> documented.
>>>
>>> Regards,
>>>
>>> Nathan
>>>
>>>
>>> On Mon, Jun 28, 2010 at 7:35 AM, Maarten Zeinstra <mz AT kl.nl> wrote:
>>>
>>> Hello list,
>>>
>>> I'm trying to make an implementation of ccREL for OAI-PMH to communicate
>>>
>>> specific ccREL information. I could not find examples or explanations how
>>>
>>> this could be added so I thought I post it on the list.
>>>
>>> I've used the standard RDF implementation to bypass the need to have an
>>> xsd,
>>>
>>> which as far as I know there is none of ccREL is there?
>>>
>>> That would result to a record that would like this? Wouldn't it?
>>>
>>> <record>
>>>
>>> <header>
>>>
>>> <identifier>...</identifier>
>>>
>>> <datestamp>1962-05-04T00:00:00Z</datestamp>
>>>
>>> </header>
>>>
>>> <metadata>
>>>
>>> <oai_dc:dc xsi:schemaLocation="
>>>
>>> http://www.openarchives.org/OAI/2.0/oai_dc/
>>>
>>> http://www.openarchives.org/OAI/2.0/oai_dc.xsd";>
>>>
>>> ....
>>>
>>> </oai_dc:dc>
>>>
>>> <rdf:RDF
>>>
>>> xmlns:rdf=?http://www.w3.org/1999/02/22-rdf-syntax-ns#?
>>>
>>> xsi:schemaLocation=
>>>
>>> ?http://www.w3.org/1999/02/22-rdf-syntax-ns#
>>>
>>> http://creativecommons.org/ns#?>
>>>
>>> <RDF:attributionName>
>>>
>>> [maker]
>>>
>>> </RDF:attributionName>
>>>
>>> <RDF:attributionURL>
>>>
>>> [locatie op openbeelden.nl]
>>>
>>> </RDF:attributionURL>
>>>
>>> <RDF:license>
>>>
>>> [licentie url]
>>>
>>> </RDF:license>
>>>
>>> </rdf:RDF>
>>>
>>> </metadata>
>>>
>>> </record>
>>>
>>> Best,
>>>
>>> Maarten Zeinstra
>>>
>>> Kennisland | Knowledgeland
>>>
>>> T: +31.20.575.6720 | E: mz AT kl.nl
>>>
>>> www.kennisland.nl | www.knowledgeland.org
>>>
>>> _______________________________________________
>>>
>>> cc-devel mailing list
>>>
>>> cc-devel AT lists.ibiblio.org
>>>
>>> http://lists.ibiblio.org/mailman/listinfo/cc-devel
>>>
>>>
>>>
>>>
>>>
>>
>
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>***************************************
>


  • Re: [cc-devel] cc-devel Digest, Vol 58, Issue 4, YongShik Lee, 07/11/2010

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