Re: Schema.org

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