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Re: Schema.org

From: Roberto Mirizzi <roberto.mirizzi@gmail.com>
Date: Sat, 04 Jun 2011 13:58:47 +0200
Message-ID: <4DEA1DF7.3010004@gmail.com>
To: semantic-web@w3.org
Thank you Bob,
so you think that because of the contract among google, yahoo and 
microsoft => RDFa and microformats are dead?
Somebody thinks that in the Semantic Web vision, RDFa is a step nearer 
than microdata to its achievement. A very interesting recent posting by 
Peter Mika about the new schema.org, and some regret for RDFa, is here: 
http://tripletalk.wordpress.com/2011/06/03/welcome-to-schema-org/.
Actually on Google they say (they said) you can use whichever standard 
(microformats, microdata, rdfa) you prefer 
(http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=99170).
Now they've moved towards microdata 
(http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=1211158). 
They say: "we’ve decided to focus on just one format for schema.org".

Is RDFa dying?

cheers,
roberto


Il 04/06/2011 10.40, Bob Ferris ha scritto:
> Hi Robert,
>
> you may have a look at the FAQ on this site:
>
> "Why microdata? Why not RDFa or microformats?" [1]
>
> Cheers,
>
>
> Bob
>
>
> [1] http://schema.org/docs/faq.html#14
>
> On 6/4/2011 10:32 AM, Roberto Mirizzi wrote:
>> Very interesting, but why only microdata? Where is the old good RDFa?
>>
>> Then, they say:
>> "For example, <h1>Avatar</h1> tells the browser to display the text
>> string "Avatar" in a heading 1 format. However, the HTML tag doesn't
>> give any information about what that text string means—"Avatar" could
>> refer to the a hugely successful 3D movie, or it could refer to a type
>> of profile picture"
>>
>> Well, actually schema.org doesn't solve this issue: let's consider
>> another example similar to the previous one:
>> "For example, <h1>London</h1> tells the browser to display the text
>> string "London" in a heading 1 format. However, the Schema.org/City
>> 'class' doesn't give any information about which city the string refers
>> to—"London" could refer to at least 25 different cities all over the
>> world".
>>
>> On the contrary with RDFa, you could specify, e.g., something like:
>> <span ... resource="http://dbpedia.org/resource/London">London></span>
>> to refer to the capital to the UK.
>>
>> cheers,
>> roberto (hoping for a real semantic web search in the future)
>>
>>
>> Il 03/06/2011 15.14, Juan Sequeda ha scritto:
>>> Hi all,
>>>
>>> I'm surprised nobody has started the discussion on the gran
>>> announcement of Google, Yahoo and Bing on schema.org 
>>> <http://schema.org>
>>>
>>> What do you all think? Is this a step forward or a step backwards?
>>>
>>> Is this "the best news I have heard in years regarding the structured
>>> Web, RDF, and the semantic Web" [1] or not?
>>>
>>> Looking forward to this discussion!
>>>
>>> [1] http://www.mkbergman.com/962/structured-web-gets-massive-boost/
>>>
>>> Juan Sequeda
>>> +1-575-SEQ-UEDA
>>> www.juansequeda.com <http://www.juansequeda.com>
>>
>> -- 
>> Roberto Mirizzi
>> http://sisinflab.poliba.it/mirizzi
>
Received on Saturday, 4 June 2011 11:59:23 UTC

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