Hi Karen,

Here's the RDF I got back from the link you gave:

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix bibo: <http://purl.org/ontology/bibo/> .
@prefix rdg2: <http://RDVocab.info/elementsG2/> .
@prefix dcterms: <http://purl.org/dc/terms/> .

    rdg2:biographicalInformation """Margaret Mahy ONZ (born i....""" ;
    rdg2:dateOfBirth "21 March 1936" ;
    rdg2:identifierForThePerson "/authors/OL31800A" ;
    rdg2:name "Margaret Mahy" ;
    rdg2:variantNameForThePerson "Mahy, Margaret" ;
    dcterms:modified "2010-04-12 12:42:10.448987" ;
    bibo:uri "http://en.wikipedia.org/wiki/Margaret_Mahy"; .

I'd like to understand if you're modelling this as a person, or as a 
"bibliographic entity" as obviously that has implications. Putting aside the 
possible confusion of pen-names my preference would be to see the author 
modelled as a person, or an organisation if a corporate author. This should be 
shown as a type statement so we know which way OL goes.

        <http://openlibrary.org/authors/OL31800A> a foaf:Person ;

If using foaf Person, it might be better to foaf:name for the name, foaf 
doesn't include a variant name so you might need to invent that, or where 
possible you could parse the name into family and given using the foaf 
properties. I know, names are a can of worms.

Having made Margaret a Person, it then wouldn't be right to say that she was 
modified! You'd have to add in some data about the representation or dataset.

        <http://openlibrary.org/authors/OL31800A.rdf> dcterms:modified 
"2010-04-12 12:42:10.448987" ;
                dcterms:subject <http://openlibrary.org/authors/OL31800A> .

That date would ideally be typed as well, so we can do date sorting:

        <http://openlibrary.org/authors/OL31800A.rdf> dcterms:modified 
"2010-04-12 12:42:10.448987"^^xsd:Date ;

It would also be good for the date of birth to be formatted and typed as an 

        <http://openlibrary.org/authors/OL31800A.rdf> rdg2:dateOfBirth 
"1936-03-21"^^xsd:Date ;

A further implication of making Margaret a Person is that you can't use 
bibo:uri, bibo says that things with a uri are either a Document or a 
Collection, and those are not compatible with also being a Person. Also, uri 
probably isn't the right term to describe the 'aboutness' of a page. I did 
think foaf had topicOf, but I can't see it in the spec - but something like

        <http://openlibrary.org/authors/OL31800A> foaf:topicOf 

Note, the uri is treated as a resource in RDF so goes in <> rather than quotes.

I'm not sure what you mean by:

    rdg2:identifierForThePerson "/authors/OL31800A" ;

isn't the full uri <http://openlibrary.org/authors/OL31800A> the identifier for 
the person?

If you do want to model the OL identifier for use in non-uri based systems 
perhaps then you would also want the scheme the identifier came from, to do 
that the identifier might need to be modelled separately:

        <http://openlibrary.org/authors/OL31800A> rdg2:identifierForThePerson 
<http://openlibrary.org/authors/OL31800A#id> .
        <http://openlibrary.org/authors/OL31800A#id> rdf:value 
"/authors/OL31800A" ;
<http://openlibrary.org/identifier-scheme> .

but I haven't thought that through very thoroughly.


On 3 Jun 2010, at 16:54, Karen Coyle wrote:

> There's a first draft of author RDF available. It's live. e.g.:
> http://openlibrary.org/authors/OL31800A.rdf
> I'm looking for a generic "URL" property for web pages about the
> author. Ideas? Also, the "link" property in OL has both the URL and
> display text. I don't know the best way to do that in RDF, other than
> to create an xml-ish structure.
> I used mainly RDVOCAB properties, but could substitute bibo and/or
> dcterms where they fit, if folks prefer. RDV tends to be more specific
> (e.g. "identifier for the person"), but that may be too specific. I
> don't much care, so state any preferences.
> Thanks,
> kc
> --
> Karen Coyle
> kco...@kcoyle.net http://kcoyle.net
> ph: 1-510-540-7596
> m: 1-510-435-8234
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