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Re: Prefix for http://purl.org/dc/elements/1.1/ in RDFa Initial Context?

From: Ivan Herman <ivan@w3.org>
Date: Wed, 27 Mar 2013 08:57:01 +0100
Cc: Gregg Kellogg <gregg@greggkellogg.net>, Thomas Baker <tom@tombaker.org>, W3C RDFa WG <public-rdfa-wg@w3.org>, Antoine Isaac <aisaac@few.vu.nl>
Message-Id: <B1365AFB-B971-44F6-A1F1-849CE489F2D7@w3.org>
To: Dan Brickley <danbri@danbri.org>, Manu Sporny <msporny@digitalbazaar.com>
Manu, 

maybe this is one of those issues that do not require telco time and can be formally voted on the mailing list. See my mail:

http://lists.w3.org/Archives/Public/public-rdfa-wg/2013Mar/0015.html

the only difference between then and now is that SPARQL is actually a Rec already, and PROV is in PR. And we are not obliged to wait for the publication of the RDFa PR for this...

Ivan


On Mar 26, 2013, at 20:03 , Dan Brickley <danbri@danbri.org> wrote:

> Can we assume this is in the pipeline and will go ahead?
> 
> Dan
> 
> On 1 March 2013 08:16, Ivan Herman <ivan@w3.org> wrote:
>> Good point. We made the commitment not to change the context file often, so I did not make a change yet. Manu, should we introduce this change now and make it official? Are there other additions that we may want to consider?
>> 
>> If we change this, we will have to make some tam-tam around it; implementers should be notified.
>> 
>> (Eg, two W3C Recs are coming up, namely prov and sparql, both have some vocabulary additions; those may be added right away, ie, as soon as PR is up)
>> 
>> Ivan
>> 
>> 
>> On Mar 1, 2013, at 17:11 , Dan Brickley <danbri@danbri.org> wrote:
>> 
>>> +cc Antoine
>>> 
>>> Where are we with this? Do you still plan to add dc11 expansion into
>>> http://www.w3.org/2011/rdfa-context/rdfa-1.1 ?
>>> 
>>> Dan
>>> 
>>> On 20 November 2012 21:37, Ivan Herman <ivan@w3.org> wrote:
>>>> I am fine with this change.
>>>> 
>>>> WG: process question. If we accept this change, when should we do this? We are bound by a promise not to make changes often. I would therefore propose to make this change when html5+rdfa goes to CR. Tom, this would be sometimes January-February time range. Would that be fine?
>>>> 
>>>> Ivan
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Nov 20, 2012, at 16:28 , Gregg Kellogg wrote:
>>>> 
>>>>> ΩOn Nov 20, 2012, at 4:24 PM, Thomas Baker <tom@tombaker.org> wrote:
>>>>> 
>>>>>> Dear RDFa WG,
>>>>>> 
>>>>>> Currently, the prefixes "dc:" and "dcterms:" are both mapped in the RDFa
>>>>>> Initial Context to the namespace URI http://purl.org/dc/terms/ (here:
>>>>>> "/terms/") [1].
>>>>>> 
>>>>>> It has been pointed out that a considerable amount of data uses, or maps to,
>>>>>> DCMI properties with the namespace URI http://purl.org/dc/elements/1.1/ (here:
>>>>>> "/1.1/"), which in other contexts has traditionally been mapped to the prefix
>>>>>> "dc:".
>>>>>> 
>>>>>> Most of the /terms/ properties have ranges restricted to either literal or
>>>>>> non-literal values, while the /1.1/ properties are rangeless (rdfs:Resource by
>>>>>> default) -- a characteristic some users see as an advantage (see [2]).
>>>>>> 
>>>>>> DCMI would like to propose to the RDFa Working Group that the prefix "dc11:" be
>>>>>> added to the Initial Context for the /1.1/ namespace URI.
>>>>> 
>>>>> +1
>>>>> 
>>>>> Gregg
>>>>> 
>>>>>> People who have used "dc:" for /1.1/ properties will need to explicitly declare
>>>>>> this as a prefix.  However, for those who continue to use /1.1/ properties --
>>>>>> in some cases, precisely because they are rangeless -- inclusion in the Initial
>>>>>> Context would emphasize that /1.1/ has not been forgotten or deprecated,
>>>>>> reinforce the message that /1.1/ properties should not be "upgraded" to /terms/
>>>>>> properties in a mechanical way, and provide a conventional prefix to use for
>>>>>> the properties.
>>>>>> 
>>>>>> Many thanks for your consideration,
>>>>>> Tom
>>>>>> 
>>>>>> [1] http://www.w3.org/2011/rdfa-context/rdfa-1.1
>>>>>> [2] http://wiki.dublincore.org/index.php/FAQ/DC_and_DCTERMS_Namespaces
>>>>>> 
>>>>>> --
>>>>>> Tom Baker <tom@tombaker.org>
>>>>>> Dublin Core Metadata Initiative Ltd
>>>>>> 
>>>>>> 
>>>>> 
>>>> 
>>>> 
>>>> ----
>>>> Ivan Herman, W3C Semantic Web Activity Lead
>>>> Home: http://www.w3.org/People/Ivan/
>>>> mobile: +31-641044153
>>>> FOAF: http://www.ivan-herman.net/foaf.rdf
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>> 
>> 
>> ----
>> Ivan Herman, W3C Semantic Web Activity Lead
>> Home: http://www.w3.org/People/Ivan/
>> mobile: +31-641044153
>> FOAF: http://www.ivan-herman.net/foaf.rdf
>> 
>> 
>> 
>> 
>> 
> 


----
Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Wednesday, 27 March 2013 07:57:42 UTC

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