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small comments on the RDFa Primer

From: Ivan Herman <ivan@w3.org>
Date: Mon, 08 Jan 2007 15:15:34 +0100
Message-ID: <45A25206.9040405@w3.org>
To: Ben Adida <ben@adida.net>
Cc: public-rdf-in-xhtml-tf@w3.org, public-swd-wg@w3.org
Hi Ben,

happy new year...

I have just read through the latest primer; can I have two minor comments?

1. I see that you have put in the role of the 'class' attribute leading
to 'rdf:type'.

If I look at chapters 2.5 and 2.6, in the example at the end of 2.5 you
have two very similar constructions with class "val:Vevent" and
class="contactinfo" but, according to the generated RDf tripls in 2.6,
the first one leads to a <#xtech_conference_talk> rdf:type cal:Vevent
whereas the second one does not yield any similar constraction. Is this
a bug or a feature? If it is a feature, I would have hard time
explaining it to an unitiated...

2. My comment on XMLLiteral is still pending[1]. I also see that there
*is* a 'type' attribute that one can use to set the datatype (as an
aside, I am not sure I like the word 'type' for this, it is misleading
for an RDF person:-(. I did not realize that in my previous comment. In
view of this and my arguments described in [1], let me rephrase my
proposal: the default datatype should be 'xsd:string' (which would also
mean stripping all the xml elements from the results if necessary); if
one really wants xml, than setting the rdfs:XMLLiteral datatype
explicitly is an option.



[1] http://www.w3.org/mid/4549CAF0.8060506@w3.org


Ivan Herman, W3C Semantic Web Activity Lead
URL: http://www.w3.org/People/Ivan/
PGP Key: http://www.cwi.nl/%7Eivan/AboutMe/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf

Received on Monday, 8 January 2007 14:15:43 UTC

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