- From: Toby Inkster <tai@g5n.co.uk>
- Date: Fri, 8 Oct 2010 16:19:15 +0100
- To: public-xg-socialweb@w3.org
XRD === References LRDD for discovery. LRDD, as a standalone spec, is defunct. It's been subsumed by the host-meta draft spec as of revision 10. http://tools.ietf.org/html/draft-hammer-hostmeta-13#appendix-B PortableContacts ================ States that it's a superset of vCard. While it's certainly derived from vCard, it's not a superset. Many of the property names are changed (e.g. ADR -> addresses) and many are removed (LOGO, ROLE, TITLE, etc). It's also syntactically entirely different. vCard is serialised using text/directory (the same as iCalendar); PortableContacts is serialised as XML or, more usually, JSON. Microformats ============ > common properties of HTML such as "rel", "class", and "span" huh? How about: established HTML attributes such as 'rel', 'class' and 'rev'. > 94 percent of Google Rich Snippets data indexed by Google Rich > Snippets is based on microformats rather than RDFa or microdata. This is a somewhat misleading statistic and may need clarifying. Doesn't compare Microformats against RDFa and Microdata; it compares microformats against the use of Google's own vocabulary in RDFa and Microformats. i.e. commonly used vocabs such as FOAF, SIOC, vCard, iCalendar, Dublin Core are not included. Open Graph Protocol =================== > The Facebook Open Graph Protocol allows any web site to a "Like" > button to an item in the page by adding only a small amount of > simplified RDFa to the header of a web-site No, it doesn't. The open graph protocol is a metadata vocabulary for describing documents and (indirectly) their topics, not that dissimilar from Dublin Core. It is typically serialised in RDFa in <meta> elements in HTML pages. The Facebook "like" button is a separate thing, added via Javascript. It is an application that *uses* the open graph protocol. -- Toby A Inkster <mailto:mail@tobyinkster.co.uk> <http://tobyinkster.co.uk>
Received on Friday, 8 October 2010 15:19:43 UTC