small comments on the RDFa Primer

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.

Thanks

Ivan


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


-- 

Ivan Herman, W3C Semantic Web Activity Lead
URL: http://www.w3.org/People/Ivan/
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