W3C

Results of Questionnaire Bootstrapping the Semantic Web through XML and Microformats via GRDDL: Next Steps

The results of this questionnaire are available to anybody.

This questionnaire was open from 2007-07-24 to 2007-08-31.

10 answers have been received.

Jump to results for question:

  1. Interested
  2. XML Vocabulary
  3. Microformat Importance
  4. Microformat Work?
  5. Ontology Repository

1. Interested

Are you interested in bootstrapping Semantic Web data using GRDDL?

Summary

ChoiceAll responders
Results
yes 10
no

Details

Responder InterestedComments
Brian Suda yes
Fabien Gandon yes
Gustavo Frederico yes I'm very much interested in GRDDL and have been following it for weeks since I found out about it. I've been following RDFa aswell. I actually depend on GRDDL and RDFa for some future product initiatives. To allow tools and users to embed RDF in web sites is extremely important to make SW data available.
Michael Hausenblas yes my 2c at http://mhausenblas.blogr.com/stories/76226/
Roberto Garcia yes I have developped a generic XML Schema to OWL complemented with a XML to RDF mapping that can be used to map existing XML metadata (once the corresponding XML Schemas have been mapped) to RDF. More details: http://rhizomik.net/redefer
Joshua Shinavier yes I haven't really studied up on GRDDL yet, but I intend to get with the program pretty soon and add GRDDL support to my applications.
Keith Alexander yes http://semwebdev.keithalexander.co.uk/blog/posts/microformats-not-semantic-web
Danny Ayers yes
Michael Schneider yes I see the Semantic Web in the very first place as the single world-wide public store of (machine processable) data. Whatever publicly accessible data exists is part of the Semantic Web. So, especially, everything available in XML, for instance microformat instances, are part of the Semantic Web. It is not a question of the representation format, if something belongs to the SW or not. And I do not have the slightest problems with the situation that there are many different format. Indeed, RDF is for many kinds of data not the best suited data format.

But, of course, if I want, for instance, execute SPARQL queries on existing microformat data, then I need to view it as RDF. GRDDL is the first choice for converting XML data into RDF. So GRDDL is of utmost importance for the Semantic Web for two reasons: Generally, it participates in the fundamental task of integrating the differently represented data on the Semantic Web. And, specifically, it makes it easily possible for RDF aware tools, browsers, etc., to access the huge amount of available real world microformat data.

Thus, I am very interested in GRDDL in general, even if I currently do not have an application, where I need to apply it.
Harry Halpin yes

2. XML Vocabulary

Are there any namespace-enabled XML vocabularies that you think should be GRDDL-enabled so we can easily convert their instance XML documents into RDF?

Please inform us if you are the maintainer or member of organization (such as a standards body) that maintains the vocabulary. Also, if the vocabulary uses namespace URIs (not URNs), if there is a namespace document at the namespace URI.

Details

Responder XML Vocabulary
Brian Suda no
Fabien Gandon SAWSDL to RDF mapping of WSDL, XHTML to RDF version of DC,
Gustavo Frederico
Michael Hausenblas
Roberto Garcia
Joshua Shinavier
Keith Alexander TEI
Danny Ayers
Michael Schneider
Harry Halpin If we can somehow get HL7 (Chime's already done a lot of the work) and Atom that would be a great victory.

3. Microformat Importance

Microformats are one way of embedding structured data into HTML, and increasingly popular (nearly 500 million web-pages). There are a number of microformat vocabularies activities ranging from calendars to tagging.

What sort of data do you think is most important for the success of the Semantic Web in the Web 2.0 community?

Feel free to add different vocabularies and microformats in the comment box

Summary

ChoiceAll responders
Don’t mindDon’t wantRanked 1Ranked 2Ranked 3Ranked 4Ranked 5Ranked 6Ranked 7
Social Networking: XFN mapping to FOAF. 2 1 4 1 2
Personal Data: hCard mapping to vCard RDF. 2 2 2 2 1 1
Calendar Data: hCalendar, mapping to RDF Calendar 3 2 2 2 1
Review Data: hReview, mapping to a Review RDF vocabulary 3 2 1 2 1 1
Creative Commons: relLicense, mapping to a Creative Commons vocabulary. 3 1 1 1 2 1 1
Tagging: relTag, mapping to a tagging RDF vocabulary 1 2 2 1 2 1 1
Feeds: hAtom, mapping to Atom/OWL. 2 1 2 3 2

Details

Responder Social Networking: XFN mapping to FOAF.Personal Data: hCard mapping to vCard RDF. Calendar Data: hCalendar, mapping to RDF CalendarReview Data: hReview, mapping to a Review RDF vocabularyCreative Commons: relLicense, mapping to a Creative Commons vocabulary. Tagging: relTag, mapping to a tagging RDF vocabularyFeeds: hAtom, mapping to Atom/OWL.
Brian Suda Ranked 3 Ranked 1 Ranked 1 Ranked 3 Ranked 4 Ranked 5 Ranked 3
Fabien Gandon Ranked 3 Ranked 1 Ranked 4 Don’t mind Don’t mind Ranked 2 Don’t mind
Gustavo Frederico Ranked 3 Ranked 5 Don’t mind Don’t mind Ranked 4 Ranked 1 Ranked 2
Michael Hausenblas Ranked 1 Ranked 3 Ranked 2 Ranked 6 Ranked 1 Ranked 2 Ranked 1 You may want to revisit http://rbach.priv.at/Microformats/IRC/2007-06-20#T234821 again and read out loud what was actually said: 'half a billion instances of microformatted content'. Is this really equal to 500M pages?
Roberto Garcia Ranked 5 Ranked 2 Ranked 1 Ranked 4 Don’t want Ranked 6 Ranked 3
Joshua Shinavier Don’t mind Don’t mind Don’t mind Ranked 5 Don’t mind Ranked 5 Ranked 7
Keith Alexander Don’t mind Don’t mind Don’t mind Don’t mind Don’t mind Don’t mind Don’t mind This probably isn't a very helpful answer - I don't feel that any microformats are particularly important because what matters is what you can do with the data; while there might be a lot of microformatted web pages, I've yet to see anyone do anything very interesting with them. Also, many of those pages likely don't parse, or don't contain very valuable data; quality is more important than quantity.
Danny Ayers Ranked 3 Ranked 2 Ranked 2 Ranked 3 Ranked 2 Ranked 3 Ranked 3
Michael Schneider Ranked 7 Ranked 7 Ranked 7 Ranked 7 Ranked 7 Ranked 7 Ranked 7 Sorry for stereotypically ranking everything at highest value. For each of the mentioned sorts of data (and probably for many more), there will surely be important applications in the future, for which this sort of data is of high value. Perhaps, I, personally, will never come in a situation, where I /directly/ need to work with, say, tagging data. But it is highly probably, that the same tagging data will influence my work in the future /indirectly/, be it that it plays a role in search results spit out by my (then) favorite semantic search engine, or one of my semantic web agents will negotiate with another agent, which uses tagging data from somewhere, or whatever.
Harry Halpin Ranked 7 Ranked 3 Ranked 4 Ranked 5 Ranked 6 Ranked 1 Ranked 2

4. Microformat Work?

summary | by responder | by choice

Would you be interested in working on deploying GRDDL for the following microformats? This would include working on a RDF vocabulary, debugging or helping create the XSLT that transforms the microformat into RDF, and creating a web-page for the profile URI, and advocacy in general.

Summary

ChoiceAll responders
Results
XFN for Social Networking, mapping to FOAF. 2
hCard for personal data, mapping to vCard RDF. 2
hCalendar, mapping to RDF Calendar 1
hReview, mapping to a Review RDF vocabulary 3
relLicense, mapping to a Creative Commons vocabulary 1
relTag, mapping to a tagging RDF vocabulary 5
relTag, mapping to a tagging RDF vocabulary 4
hAtom, mapping to Atom/OWL. 3

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View by responder

Details

Responder Microformat Work?
Brian Suda
  • XFN for Social Networking, mapping to FOAF.
  • hCard for personal data, mapping to vCard RDF.
  • hCalendar, mapping to RDF Calendar
  • hReview, mapping to a Review RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
Fabien Gandon
  • relTag, mapping to a tagging RDF vocabulary
Gustavo Frederico
  • relTag, mapping to a tagging RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
Michael Hausenblas
  • XFN for Social Networking, mapping to FOAF.
  • relLicense, mapping to a Creative Commons vocabulary
  • hAtom, mapping to Atom/OWL.
Roberto Garcia
Joshua Shinavier
  • hReview, mapping to a Review RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
  • hAtom, mapping to Atom/OWL.
Keith Alexander
Danny Ayers
  • hReview, mapping to a Review RDF vocabulary
  • relTag, mapping to a tagging RDF vocabulary
Michael Schneider
Harry Halpin
  • hCard for personal data, mapping to vCard RDF.
  • relTag, mapping to a tagging RDF vocabulary
  • hAtom, mapping to Atom/OWL.

View by choice

ChoiceResponders
XFN for Social Networking, mapping to FOAF.
  • Brian Suda
  • Michael Hausenblas
hCard for personal data, mapping to vCard RDF.
  • Brian Suda
  • Harry Halpin
hCalendar, mapping to RDF Calendar
  • Brian Suda
hReview, mapping to a Review RDF vocabulary
  • Brian Suda
  • Joshua Shinavier
  • Danny Ayers
relLicense, mapping to a Creative Commons vocabulary
  • Michael Hausenblas
relTag, mapping to a tagging RDF vocabulary
  • Brian Suda
  • Gustavo Frederico
  • Joshua Shinavier
  • Danny Ayers
  • Harry Halpin
relTag, mapping to a tagging RDF vocabulary
  • Brian Suda
  • Fabien Gandon
  • Gustavo Frederico
  • Joshua Shinavier
hAtom, mapping to Atom/OWL.
  • Michael Hausenblas
  • Joshua Shinavier
  • Harry Halpin

5. Ontology Repository

Do you think there should be some central RDF vocabulary or ontology repository to help users find RDF vocabularies, and vocabulary owners maintain them?

Summary

ChoiceAll responders
Results
yes 7
no 2

(1 response didn't contain an answer to this question)

Details

Responder Ontology RepositoryComments
Brian Suda
Fabien Gandon no
Gustavo Frederico yes I actually think there should be an RDF vocabulary BROKER somewhere on the Internet. And a couple of RDF vocabulary repositories to bootstrap data. The broker would have all sorts of open APIs to access it programmatically: JSON, XML over HTTP, web services, URLs pointing to pure RDFs and so on. After the broker is built other vocabularies will pop-up on the Internet.
Michael Hausenblas yes something like http://schemaweb.info/?
Roberto Garcia yes http://www.schemaweb.info was an interesting initiative that might be the starting point for such a repository
Joshua Shinavier yes Not that there needs to be a single source for RDF vocabularies, but a service which provides a simple and flexible way of publishing, versioning and managing vocabularies would be nice.
Keith Alexander no there's no harm in there being some repositories, but there probably shouldn't be one canonical one.
Danny Ayers yes Ideally more than one repository...
Michael Schneider yes But this is a /weak/ "Yes", more of a "not No"! I say, if some repository is needed, it will be build by people who need it. Perhaps only for those few vocabularies, which are of high value for some specific community. If there are several of those small repositories, other people or enterprises will probably come and build "meta" repositories on top of them, etc. So this will grow, anyway. My "Yes" does not mean that I think there should be a single dedicated organization which is responsible for managing such a repository.
Harry Halpin yes If only funding would appear..

More details on responses

  • Brian Suda: last responded on 25, July 2007 at 21:51 (UTC)
  • Fabien Gandon: last responded on 1, August 2007 at 09:25 (UTC)
  • Gustavo Frederico: last responded on 7, August 2007 at 19:02 (UTC)
  • Michael Hausenblas: last responded on 7, August 2007 at 19:12 (UTC)
  • Roberto Garcia: last responded on 7, August 2007 at 19:56 (UTC)
  • Joshua Shinavier: last responded on 7, August 2007 at 22:11 (UTC)
  • Keith Alexander: last responded on 7, August 2007 at 22:24 (UTC)
  • Danny Ayers: last responded on 8, August 2007 at 07:57 (UTC)
  • Michael Schneider: last responded on 8, August 2007 at 11:43 (UTC)
  • Harry Halpin: last responded on 30, August 2007 at 00:45 (UTC)

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