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Can somebody give a "live" example where this has actually been used
(i.e. a URI pointing to some RDF or an XML record)? <br>
<br>
A "made-up" example based on Ms. Julie Woodruff's relationship given in
the DwC Quick Reference guide: <a class="moz-txt-link-freetext" href="http://rs.tdwg.org/dwc/terms/index.htm">http://rs.tdwg.org/dwc/terms/index.htm</a> :<br>
subject organism (the offspring) URI:
<a class="moz-txt-link-freetext" href="http://example.org/individual/67488">http://example.org/individual/67488</a><br>
object organism (the mother) URI: <a class="moz-txt-link-freetext" href="http://example.org/individual/23327">http://example.org/individual/23327</a><br>
<br>
If there were a term like voc:mother that said that the object was the
mother of the subject, it would be easy to express:<br>
<br>
<?xml version="1.0" encoding="UTF-8"?><br>
<rdf:RDF xmlns:rdf=<a class="moz-txt-link-rfc2396E" href="http://www.w3.org/1999/02/22-rdf-syntax-ns#">"http://www.w3.org/1999/02/22-rdf-syntax-ns#"</a><br>
xmlns:voc=<a class="moz-txt-link-rfc2396E" href="http://example.org/terms/">"http://example.org/terms/"</a><br>
><br>
<rdf:Description
rdf:about=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/67488">"http://example.org/individual/67488"</a>><br>
<voc:mother
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/23327">"http://example.org/individual/23327"</a> /><br>
</rdf:Description><br>
</rdf:RDF><br>
<br>
Throw that into an RDF validator like <a class="moz-txt-link-freetext" href="http://www.w3.org/RDF/Validator/">http://www.w3.org/RDF/Validator/</a>
and you get a graph that expresses the relationship simply. Now I
struggled to express the relationship using terms from the Darwin Core
ResourceRelationship class:<br>
<br>
<?xml version="1.0" encoding="UTF-8"?><br>
<rdf:RDF xmlns:rdf=<a class="moz-txt-link-rfc2396E" href="http://www.w3.org/1999/02/22-rdf-syntax-ns#">"http://www.w3.org/1999/02/22-rdf-syntax-ns#"</a><br>
xmlns:dwc=<a class="moz-txt-link-rfc2396E" href="http://rs.tdwg.org/dwc/terms/">"http://rs.tdwg.org/dwc/terms/"</a><br>
><br>
<rdf:Description rdf:about=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/67488">"http://example.org/individual/67488"</a>><br>
<dwc:resourceRelationshipID><br>
<rdf:Description
rdf:about=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/67488#mother">"http://example.org/individual/67488#mother"</a>><br>
<dwc:resourceID
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/67488">"http://example.org/individual/67488"</a> /><br>
<dwc:relatedResourceID
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://example.org/individual/23327">"http://example.org/individual/23327"</a> /><br>
<dwc:relationshipOfResource>mother
of</dwc:relationshipOfResource><br>
<dwc:relationshipAccordingTo
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://example.org/people/woodruff-julie">"http://example.org/people/woodruff-julie"</a> /><br>
<dwc:relationshipEstablishedDate>2003-08-17</dwc:relationshipEstablishedDate><br>
<dwc:relationshipRemarks>mother and offspring collected
from the same nest</dwc:relationshipRemarks><br>
</rdf:Description><br>
</dwc:resourceRelationshipID><br>
</rdf:Description><br>
</rdf:RDF><br>
<br>
When I throw that into the validator, I get a graph something like what
I imagine, where the URI that I made up for the instance of the
relationship (<a class="moz-txt-link-freetext" href="http://example.org/individual/67488#mother">http://example.org/individual/67488#mother</a>) is a named
node that connects the subject to the object and all of the properties
of the relationship. But I'm not really sure that this is saying what
is intended in the DwC standard. Maybe these ResourceRelationship
terms are only intended for database tables where the terms are column
headings and the instances are rows, and not really for RDF. But the
presence of all of the "ID" terms was suggesting to me the use of
URIs/GUIDs. Basically I don't understand how this is supposed to work
and a functioning example would be helpful. <br>
<br>
Steve Baskauf<br>
<br>
John Wieczorek wrote:
<blockquote
cite="mid:AANLkTi=YiGPwvp4DPUBbuThzD6N_UYc8tVrBpDpmH=qc@mail.gmail.com"
type="cite"><span class="Apple-style-span"
style="font-family: arial,sans-serif; font-size: 12.5px; border-collapse: collapse;"><font
face="arial, helvetica, sans-serif">The term relationshipOfResource
has the recommendation to use a controlled vocabulary. The vocabulary
does not yet exist - it is an aspect that requires community
development. The ResourceRelationship class has the added benefits over
the associatedOccurrences term that there is no dependence on the
syntax of the content to discern the correct meaning.</font>
<div><font face="arial, helvetica, sans-serif"><br>
</font></div>
<div><font face="arial, helvetica, sans-serif">From </font><a
moz-do-not-send="true"
href="http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource"
target="_blank" style="color: rgb(0, 0, 204);"><font
face="arial, helvetica, sans-serif">http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource</font></a><font
face="arial, helvetica, sans-serif">:</font>
<div><font face="arial, helvetica, sans-serif"><br>
</font></div>
<div><font face="arial, helvetica, sans-serif">Definition: </font><span
style="border-collapse: collapse;"><font
face="arial, helvetica, sans-serif">The relationship of the resource
identified by relatedResourceID to the subject (optionally identified
by the resourceID). Recommended best practice is to use a controlled
vocabulary.</font></span></div>
<div><font face="arial, helvetica, sans-serif"><br>
</font></div>
<div><font face="arial, helvetica, sans-serif">Comment: </font><span
style="border-collapse: collapse;"><font
face="arial, helvetica, sans-serif">Examples: "duplicate of", "mother
of", "endoparasite of", "host to", "sibling of", "valid synonym of",
"located within". For discussion see </font><a moz-do-not-send="true"
href="http://code.google.com/p/darwincore/wiki/ResourceRelationship"
target="_blank"
style="color: rgb(51, 51, 51); text-decoration: underline;"><font
face="arial, helvetica, sans-serif">http://code.google.com/p/darwincore/wiki/ResourceRelationship</font></a></span></div>
</div>
</span><br>
<div class="gmail_quote">On Tue, Aug 24, 2010 at 7:07 AM, Mark Wilden
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:mark@mwilden.com">mark@mwilden.com</a>></span> wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div class="h5">On Tue, Aug 24, 2010 at 6:24 AM, John Wieczorek <<a
moz-do-not-send="true" href="mailto:tuco@berkeley.edu">tuco@berkeley.edu</a>>
wrote:<br>
> Note that associatedOccurrences is one of the several terms that
are meant<br>
> to allow lists of relationships between resources to be captured
in a single<br>
> field. Others include associatedMedia, associatedReferences,<br>
> associatedSequnces, and associatedTaxa. The main purposes of these
fields is<br>
> to provide a mechanism to share relationship information in a flat<br>
> application profile such as the Simple Darwin Core<br>
> (<a moz-do-not-send="true"
href="http://rs.tdwg.org/dwc/terms/simple/index.htm" target="_blank">http://rs.tdwg.org/dwc/terms/simple/index.htm</a>).
If an application profile<br>
> isn't constrained by being flat, then there is a much more robust
way to<br>
> capture relationships, using the ResourceRelationship class and
it's<br>
> constituent terms (<a moz-do-not-send="true"
href="http://rs.tdwg.org/dwc/terms/index.htm#relindex" target="_blank">http://rs.tdwg.org/dwc/terms/index.htm#relindex</a>).<br>
<br>
However, the values of the description of the relationship<br>
(<a moz-do-not-send="true"
href="http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource"
target="_blank">http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource</a>)
are<br>
not controlled, so this still doesn't provide a "community-defined"<br>
vocabulary that Bob was asking about.<br>
<br>
///ark<br>
Web Applications Developer<br>
Center for Applied Biodiversity Informatics<br>
California Academy of Sciences<br>
</div>
</div>
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</div>
</blockquote>
</div>
<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Steven J. Baskauf, Ph.D., Senior Lecturer
Vanderbilt University Dept. of Biological Sciences
postal mail address:
VU Station B 351634
Nashville, TN 37235-1634, U.S.A.
delivery address:
2125 Stevenson Center
1161 21st Ave., S.
Nashville, TN 37235
office: 2128 Stevenson Center
phone: (615) 343-4582, fax: (615) 343-6707
<a class="moz-txt-link-freetext" href="http://bioimages.vanderbilt.edu">http://bioimages.vanderbilt.edu</a>
</pre>
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