W3C home > Mailing lists > Public > public-semweb-lifesci@w3.org > June 2009

Re: Can RDFa be used on XML: pharma information

From: Rick Jelliffe <rjelliffe@allette.com.au>
Date: Tue, 23 Jun 2009 23:22:07 +1000
Message-ID: <4A40D6FF.2060608@allette.com.au>
To: public-semweb-lifesci@w3.org
Egon Willighagen wrote:
> The problem here is to define what attributes your XML will use to
> define the RDFa hooks... what attributes will define a new subject,
> the predicate, and how you define the object...
>
>   
Yes, we lose the  html:base element and html:link, but why would we lose 
the predicates?   @rel and @rev would presumably be available on any 
element: couldn't it be used so that instead of

<div about="http://dbpedia.org/resource/Albert_Einstein">
  <span property="foaf:name">Albert Einstein</span>
  <span property="dbp:dateOfBirth" datatype="xsd:date">1879-03-14</span>
  <div rel="dbp:birthPlace" resource="http://dbpedia.org/resource/Germany">
    <span property="dbp:conventionalLongName">Federal Republic of Germany</span>
  </div>
</div>

I can have

<person about="http://dbpedia.org/resource/Albert_Einstein">
  <name property="foaf:name">Albert Einstein</name>
  <dob property="dbp:dateOfBirth" datatype="xsd:date">1879-03-14</dob>
  <nation rel="dbp:birthPlace" resource="http://dbpedia.org/resource/Germany">
    <name property="dbp:conventionalLongName">Federal Republic of Germany</name>
  </nation>
</person>

It seems to me that where-ever RDFa does not rely on HTML semantics, it 
"should" be free (there is no conceptual impediment) to use on XML: it 
can certainly determine whether an XML element has a legit XMLliteral or 
mixed or element content.

> Because the XML is using a local namespace, it will be unrecognizable
> for any client... however, given you define those attributes (or via
> new elements), you should be able to embed this RDFa in the HTML more
> easily too...
>   
What is the necessary difference, for an RDFa engine, between

<span about="urn:ISBN:0091808189" typeof="biblio:book"
           property="dc:title">
      Canteen Cuisine
</span>

and

<my:book about="urn:ISBN:0091808189" typeof="biblio:book"
           property="dc:title">
      Canteen Cuisine
</my:book>

Cheers
Rick Jelliffe
Received on Tuesday, 23 June 2009 13:23:00 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 18:00:56 GMT