EML mapping question.

[James W Brunt]

It seems that some information is getting lost with this solution - in 
the absence of a triple to define the relationship between the citation 
and the dataset I don't see how the information "this citation is for a 
paper that cites or contains analysis of these data" is recorded. 
Enlighten me.

James

Christopher Jones wrote:

> David,
>
> Here's my take, and I welcome any corrections if I've done any poor 
> interpreting of EML constructs...
>
> In short, you need eml-literature for your citation.
>
> Here's the babbling answer:
>
> Both eml-dataset and eml-literature are considered top level resources 
> (as are eml-software and eml-protocol).  They extend the eml-resource 
> schema by providing additional content that is dataset or literature 
> (citation) specific.
>
> In packages marked up with EML2.0.0beta6 and earlier, a literature 
> document was "related" to a dataset document through the <triple> 
> construct.  However, with further development of EML, the community 
> has decided to replace the RDF-like triples by adopting the XMLSchema 
> approach to relating XML trees to each other by  referencing 'id' 
> attributes within a *single document* that uniquely identify a tree of 
> elements.  This is  now done through the <additionalMetadata> tag, 
> with it's <describes> child tag.
>
> To mark up a single EML package (i.e. <eml> ...metadata and/or data 
> ... </eml> that includes both a <dataset> tree and a <citation> tree, 
> it would look something like the following (notice the id's and the 
> namespace declarations, they are critical for validation):
>
> <?xml version="1.0"?>
> <eml:eml
>    packageId="eml.1.1" system="knb"
>    xmlns:eml="eml://ecoinformatics.org/eml-2.0.0rc3"
>    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>    xmlns:ds="eml://ecoinformatics.org/dataset-2.0.0rc3"
>    xmlns:stmml="http://www.xml-cml.org/schema/stmml"
>    xsi:schemaLocation="eml://ecoinformatics.org/eml-2.0.0rc3 eml.xsd">
>
> <dataset id="1555">
>
>  <!-- all the required eml-dataset elements go in here ... -->
>
> </dataset>
> <additionalMetadata>
>  <describes>
>    1555
>  </describes>
>  <cit:citation id="345" scope="document"
>            xmlns:cit="eml://ecoinformatics.org/literature-2.0.0rc3"
>            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>            
> xsi:schemaLocation="eml://ecoinformatics.org/literature-2.0.0rc3
>            eml-literature.xsd">
>
>    <!-- all the required eml-literature elements go in here ... -->
>
>  </cit:citation>
> </additionalMetadata>
> </eml:eml>
>
> The semantic nature of the relationship between the two trees isn't 
> explicitly stated, as was the intention of the whole <triple> 
> approach, but I think that it can be inferred by the namespace 
> declaration for the <citation> tag.  This lets processing systems know 
> to treat the tree as a citation, and render it as such in some GUI app.
>
> I've checked a sample document into CVS (in the eml/test directory) 
> called eml-datasetWithCitation.xml that is a validating sample of what 
> I think you may be asking for here.
>
> Cheers,
>
> Chris
>
> David Blankman wrote:
>
>> Below is a  metadata document from the McMurdo LTER site. In the 
>> document they have a section called "CITATION".
>> * CITATIONS: *Spaulding, Sarah A, Diane M. McKnight, Richard L. Smith 
>> and Richard Dufford. 1994. Phytoplankton population dynamics in 
>> perennially ice-covered Lake Fryxell, Antarctica. Journal of Plankton 
>> Research. Vol.16 no.5 pp.527-541.
>>
> _________________________________________________________________
> christopher jones     cjones at lifesci.ucsb.edu      (805) 893-5144
> marine science institute  university of california, santa barbara
> _________________________________________________________________
>
>
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-- 
James W. Brunt
Associate Director for Information Management
Long Term Ecological Research Network Office
Department of Biology
University of New Mexico
Albuquerque, NM 87131-1091
505 272 7085
jbrunt at lternet.edu