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Re: FYI: W3C editor's draft for RDFa 1.1 Lite

From: Peter Mika <pmika@yahoo-inc.com>
Date: Mon, 31 Oct 2011 12:39:15 +0100
Message-ID: <4EAE88E3.1080104@yahoo-inc.com>
To: Ivan Herman <ivan@w3.org>
CC: W3C RDFWA WG <public-rdfa-wg@w3.org>, HTML Data Task Force WG <public-html-data-tf@w3.org>, Jeni Tennison <jeni@jenitennison.com>, Ramanathan V Guha <guha@google.com>
Hi Ivan, All,

It's great to see RDFa Lite 1.1 progressing so fast!

I agree with Ivan that changes to the semantics of property should be 
included in RDFa Core 1.1 and simply inherited into Lite.

It seems that the last remaining issues are related to chaining. 
Contrary to popular belief, chaining is used in schema.org, even in 
simple examples such as Person and Product. In microdata, itemprop is 
used both to provide simple attribute values and for chaining, i.e. to 
provide another item as value. We should look at (1) whether to allow 
'property' to be used for chaining and (2) whether the typeof can be on 
the same element as property/rel when chaining. These two changes would 
bring RDFa Lite 1.1 even closer to microdata. I see these changes 
already appear in [4].


On 10/31/11 10:37 AM, Ivan Herman wrote:
> In accordance with the WG resolution of last week[1], the Editor's draft of RDFa Lite 1.1[2] has been uploaded to the server (the 'working', ie, RecSpec version is in [3]). This should be published as a FPWD together with the rest of the RDFa 1.1 documents Working Drafts, when the last few remaining technical issues are solved.
> Note that RDFa 1.1 Lite does _not_ include a change in the behaviour of @property. In my view this is the way it should be (although I am not 100% sure this has been decided by the WG): this behaviour should be part of RDFa 1.1. Core, and not only for the Lite subset. Indeed, if it was part of Lite only, that would distort the important fact that the current Lite[2] is a strict subset of Core. (See, eg, [4], although the URI name is a misnomer, the feature is not Lite specific, or the discussion thread starting with [5]).
> [1] http://www.w3.org/2010/02/rdfa/meetings/2011-10-27#RDFa_Lite_1__2e_1_as_Editors_Draft__3f_
> [2] http://www.w3.org/2010/02/rdfa/drafts/2011/ED-rdfa-lite-20111030/
> [3] http://www.w3.org/2010/02/rdfa/sources/rdfa-lite/Overview-src.html
> [4] http://www.w3.org/2010/02/rdfa/wiki/RDFaLiteWithProperty
> [5] http://lists.w3.org/Archives/Public/public-rdfa-wg/2011Oct/0107.html
> ----
> Ivan Herman, W3C Semantic Web Activity Lead
> Home: http://www.w3.org/People/Ivan/
> mobile: +31-641044153
> PGP Key: http://www.ivan-herman.net/pgpkey.html
> FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Monday, 31 October 2011 11:39:57 UTC

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