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RE: [semweb-dev] PA comments on rnews 0.5

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  • misha.wolf@thomsonreuters.com
    It s nice to see RDFa borrowing those two mechanisms (vocab and profile) from the IPTC G2 Standards, albeit renaming them. It is said that imitation is the
    Message 1 of 1 , May 31, 2011
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      It's nice to see RDFa borrowing those two mechanisms (vocab and
      profile) from the IPTC G2 Standards, albeit renaming them. It
      is said that imitation is the best form of flattery.

      Misha


      -----Original Message-----
      From: iptc-semweb-dev@yahoogroups.com [mailto:iptc-semweb-dev@yahoogroups.com] On Behalf Of Raphaël Troncy
      Sent: 31 May 2011 16:12
      To: iptc-semweb-dev@yahoogroups.com
      Cc: Stuart Myles; John O'Donovan
      Subject: Re: [semweb-dev] PA comments on rnews 0.5

      Interesting discussion ...

      > 1. The arguments for the use of a unified namespace aren't
      > sufficient. The document concedes that a later version of rNews
      > will include a formal alignment with existing standards. If we are
      > going to vote positively on the adoption of rNews, I believe this
      > very important aspect is necessary for such a standard.
      >
      > Certainly, this has been one of the most controversial aspects of rNews
      > as a whole. Of course, it is also controversial in the wider semantic
      > web / semantic markup in HTML discussions. (Microformats don't use
      > namespaces at all, namespaces have been the subject of fierce debate in
      > HTML5 and even RDFa 1.1 seems to be shifting its position on how
      > namespaces should be applied).

      Indeed, the RDFa 1.1 has deprecated the use of xmlns and replaced it
      with the vocab attribute to specify a unique schema/ontology where the
      terms are defined.

      But, more interestingly, RDFa has also introduced the profile attribute.
      The profile attribute has for value a URI pointing to a profile that may
      contain prefixes for a number of well known other vocabularies.
      Therefore, we could imagine that IPTC has an official "profile" listing
      all interesting vocabularies in the rNews context (i.e. the vocabularies
      for which you establish some mappings) and simply recommend this profile
      to be able to benefit from the whole Semantic Web.

      Ivan Herman has published a nice blog post recently about this topic,
      see http://www.w3.org/QA/2011/05/rdfa_11_with_a_rich_snippet_ex

      >> NewsItem.headline, Article.body. There is a risk of redundancy by
      > recreating existing html tags such as <body> and <h>.
      >
      > Remember that many news providers don't use POSH (Plain Old Semantic
      > HTML) in their web presentations. And, even if they do, it is still
      > clearer to use rNews/hNews to explicitly state which is the headline,
      > the body, etc.

      I agree. <body> and <h> are really presentational elements. HTML5 has
      introduced a number of structural elements (header, footer, nav, aside,
      section, article) which adds a bit of semantics to how content is
      organized in an HTML page ... but we are still far from the semantics of
      those terms in the journalism domain I think.

      My 2c.

      Raphaël

      --
      Raphaël Troncy
      EURECOM, Multimedia Communications Department
      2229, route des Crêtes, 06560 Sophia Antipolis, France.
      e-mail: raphael.troncy@... & raphael.troncy@...
      Tel: +33 (0)4 - 9300 8242
      Fax: +33 (0)4 - 9000 8200
      Web: http://www.eurecom.fr/~troncy/


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