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RDFa Syntax Document Feedback

From: Manu Sporny <msporny@digitalbazaar.com>
Date: Thu, 06 Sep 2007 00:58:46 -0400
Message-ID: <46DF8906.2090705@digitalbazaar.com>
To: RDFa mailing list <public-rdf-in-xhtml-tf@w3.org>

Some feedback on the RDFa Syntax document... this was my first time
reading it. It took around 1.5 hours to read through the text and while
some of it was out of date, it didn't seem too complicated to understand
(for the intended audience).

3.1. Overview

Awesome section - really helped summarize RDFa. It is a good 10,000 ft
view of RDFa, IMHO.

3.3. Relating document components

CURIEs are incorrect? taxo and biblio aren't defined in the opening
<html> element using @xmlns. For example, you couldn't resolve the
following in the example:

<link rel="rdf:type" href="[taxo:topic]" />

3.4. Global RDF statements

Could we use a more verbose example? This is one of the main features of
RDFa that got us interested. Could you re-use the photo example, but
show how the triples can be sprinkled throughout the HTML?

4.4.1. The property attribute

Missing what the generated triple should be. Is it:

<#q1> dc:creator "Fyodor Dostoevsky".

5.1.1. Without datatype

Both examples are supposed to generate plain literals now, right?

5.3. Reification

I went into this section not knowing what Reification was... and I still
don't quite understand what it is, or why we need it :) - I understand
that LINK and META affects the subject resolution, and it's useful to
create triples about links about documents... but is it common for
people to mark up this kind of data in their HTML? Seems a bit complex
for a Reification-noob like myself.

6.2 FOAF

I didn't think that the subject could be established using @id. However,
the triples generated look as if @id was used to establish the subject
of all of the foaf:Person statements?

7.2. Evaluation Context
   ...The [language]. Note that there is no default language.

By [language], do you mean xml:lang?

If there is no default language, wouldn't the context be invalid if it
were not specified? Or should it default to the application default
language or "en"? I think I know the answer to this question, but it
would be good to have it stated explicitly in the syntax document.

-- manu
Received on Thursday, 6 September 2007 04:58:52 UTC

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