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Well, within one's own database I guess that would depend on the kind
of record structure you set up. In RDF it is clearer. For example in<br>
<a class="moz-txt-link-freetext" href="http://www.biodiversitycollectionsindex.org/collection/rdf/id/35259">http://www.biodiversitycollectionsindex.org/collection/rdf/id/35259</a><br>
you see an RDF document that describes two things: the Vanderbilt
Arboretum, and the RDF document itself which describes the arboretum.
They are demarcated within separate XML container elements. The
element <br>
<tc:Collection rdf:about="urn:lsid:biocol.org:col:35259"> <br>
contains the metadata about the Arboretum itself, which is a physical,
non-information resource. The element <br>
<rdf:Description
rdf:about=<a class="moz-txt-link-rfc2396E" href="http://www.biodiversitycollectionsindex.org/collection/rdf/id/35259">"http://www.biodiversitycollectionsindex.org/collection/rdf/id/35259"</a>>
<br>
contains the metadata about the document describing the arboretum which
is an information resource deliverable via the web. Both of these
elements include a dc:created property. The arboretum's dc:created
property has a string literal value of "1988" because that's when the
arboretum was officially recognized as existing. The document has a
dc:created property with a literal value of "2010-08-01 00:27:28"
because that was the date when the metadata document was first created
by Biodiversity Collections Index.<br>
<br>
In another example:<br>
<a class="moz-txt-link-freetext" href="http://bioimages.vanderbilt.edu/baskauf/51899.rdf">http://bioimages.vanderbilt.edu/baskauf/51899.rdf</a><br>
the metadata describes an image, and the file containing the image
metadata. The image description is in the <br>
<rdf:Description
rdf:about=<a class="moz-txt-link-rfc2396E" href="http://bioimages.vanderbilt.edu/baskauf/51899">"http://bioimages.vanderbilt.edu/baskauf/51899"</a>><br>
element with <a class="moz-txt-link-freetext" href="http://bioimages.vanderbilt.edu/baskauf/51899">http://bioimages.vanderbilt.edu/baskauf/51899</a> being the
identifier for the image and the image metadata document description is
in the <br>
<rdf:Description
rdf:about=<a class="moz-txt-link-rfc2396E" href="http://bioimages.vanderbilt.edu/baskauf/51899.rdf">"http://bioimages.vanderbilt.edu/baskauf/51899.rdf"</a>><br>
element. The image has a property<br>
<dcterms:creator
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://bioimages.vanderbilt.edu/contact/baskauf">"http://bioimages.vanderbilt.edu/contact/baskauf"</a>/><br>
which says that the image was created by me (represented by the URI
<a class="moz-txt-link-freetext" href="http://bioimages.vanderbilt.edu/contact/baskauf">http://bioimages.vanderbilt.edu/contact/baskauf</a>) and the metadata
document has a property<br>
<dcterms:creator
rdf:resource=<a class="moz-txt-link-rfc2396E" href="http://biocol.org/urn:lsid:biocol.org:col:35115">"http://biocol.org/urn:lsid:biocol.org:col:35115"</a>/><br>
which says that the metadata document was created by the Bioimages
collection (represented by the URI
<a class="moz-txt-link-freetext" href="http://biocol.org/urn:lsid:biocol.org:col:35115">http://biocol.org/urn:lsid:biocol.org:col:35115</a>). <br>
<br>
So in both of these examples, the RDF explicitly states what the
description is "about" by means of the rdf:about attribute in the
opening tag of the XML element. <br>
<br>
Hope this helps and maybe somebody else can comment about this in other
contexts.<br>
Steve<br>
<br>
Aaike De Wever wrote:
<blockquote
cite="mid:EAD61C90-1F5B-4465-A21F-FC6C95999633@naturalsciences.be"
type="cite">
<pre wrap="">Dear Steve,
<snip>
</pre>
<blockquote type="cite">
<pre wrap="">Again, I think the solution is to be clear about what resource one is talking about
rather than to try to come up with separate terms for creator, language,
and created for three different types of resources.
</pre>
</blockquote>
<pre wrap=""><!----></snip>
As an up-to-now passive watcher of this list and dwc/dc newbie, I am wondering how exactly one can make clear whether it is the specimen, image of metadata one is talking about?
Thanks for clarifying!
With best regards,
Aaike
On 14 Jan 2011, at 15:29, Steve Baskauf wrote:
</pre>
<blockquote type="cite">
<pre wrap="">It seems to me that part of the problem here is that there are several
types of resources that are being mixed. There is the specimen itself,
there is the image of the specimen, and there is the metadata record.
The person digitizing the specimen is the dc:creator of the specimen
image. The collector of the specimen or the collector's institution is
the dc:creator of the specimen. The person entering the metadata into
the computer or that person's institution is the dc:creator of the
metadata record. Of course a lot of people aren't going to care about
this level of detail in keeping separate records for those three types
of resources. But those same people also probably aren't going to care
about keeping separate records of who all of the different creators are
either.
The same kind of issue exists with other terms, such as dc:language and
dcterms:created. If you specify dc:language, is that the language on
the specimen label, the language of other things on the image (like text
on added scale bars), or the language of the metadata? Again, I think
the solution is to be clear about what resource one is talking about
rather than to try to come up with separate terms for creator, language,
and created for three different types of resources.
Steve
Gregor Hagedorn wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Using Creator is ok for the person digitizing the specimen (although
contributor may be more appropriate), but the person who originally
wrote the label is an dc:creator as well.
dcterms are meant to have a wide scope and by information-lossy. My
comment is only: do not define: if there is a dc:creator, then it was
the person who digitized.
Gregor
</pre>
</blockquote>
</blockquote>
<pre wrap=""><!---->
--
Aaike De Wever
BioFresh Science Officer
Freshwater Laboratory, Royal Belgian Institute of Natural Sciences
Vautierstraat 29, 1000 Brussels
Belgium
tel.: +32(0)2 627 43 90
mobile.: +32(0)486 28 05 93
email: <a class="moz-txt-link-rfc2396E" href="mailto:aaike.dewever@naturalsciences.be"><aaike.dewever@naturalsciences.be></a>
skype: aaikew
AIM: <a class="moz-txt-link-abbreviated" href="mailto:aaike@mac.com">aaike@mac.com</a>
LinkedIn: <a class="moz-txt-link-rfc2396E" href="http://be.linkedin.com/in/aaikedewever"><http://be.linkedin.com/in/aaikedewever></a>
BioFresh: <a class="moz-txt-link-rfc2396E" href="http://www.freshwaterbiodiversity.eu/"><http://www.freshwaterbiodiversity.eu/></a> and <a class="moz-txt-link-rfc2396E" href="http://data.freshwaterbiodiversity.eu/"><http://data.freshwaterbiodiversity.eu/></a>
Belgian Biodiversity Platform: <a class="moz-txt-link-rfc2396E" href="http://www.biodiversity.be"><http://www.biodiversity.be></a>
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</pre>
</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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