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Re: Including location, calendar and contact data in the ontology

From: Dave Raggett <dsr@w3.org>
Date: Wed, 5 Dec 2007 11:50:12 +0000 (GMT)
To: public-uwa@w3.org
Message-ID: <alpine.DEB.0.99.0712051146290.7314@ivy>

In regards to modeling contact info, Norm Walsh has done a nice job 
on modelling vCards and hCards in RDF, see:


and it would seem reasonable to use that as a basis for including 
contact information as part of the DC Ontology.

  Dave Raggett <dsr@w3.org> http://www.w3.org/People/Raggett

On Tue, 27 Nov 2007, Dave Raggett wrote:

> Following the discussion at the recent face to face I would like 
> to consider how to extend the delivery context ontology to cover 
> location, calendar and contact info, based upon existing work.
> Privacy concerns are clearly very important for such data and this 
> will act as a brake on application developers. This is something I 
> intend to address with a forthcoming W3C workshop in 2Q'08. I am 
> expecting the business models for providing such services to move 
> through a sequence of phases. A proprietary walled garden approach 
> is likely to give way to a more open approach as the necessary 
> standards are put in place, and this will in turn enable a much 
> bigger pool of developers to innovate with new kinds of 
> applications that exploit location, calendar and contact data.
> Work on the ontology for such data is a reasonable first step 
> towards open standards for web applications as the ontology is 
> decoupled from specific APIs and from the associated access 
> control mechanisms. The extensions to the delivery context 
> ontology should in my opinion be based upon existing work, e.g.
> 1) For location we could leverage
>  - JSR179, a location API for Java midlets
>  - GPX, an XML format for exchanging location data
>  - EXIF extensions for tagging photos with location
> 2) For calendar info, we could leverage vCal and iCalendar
> 3) For contact info, we could leverage vCard
> Google has been doing some potentially related work on common APIs 
> for building social applications on many websites, see:
>    http://code.google.com/apis/opensocial/
> It currently covers personal profiles, friend relationships, 
> actions such as uploading a video file, and a persistence API for 
> accessing data held on the website. It is therefore reasonable to 
> envisage an expanding collection of APIs for distributed socially 
> oriented web applications, for example access to location as part 
> of your friend's presence information.
> We need to discuss the role of standards for ontologies as a means 
> to avoid market fragmentation, and how to avoid bottle-necks in 
> the development of such standards.
> I will try to post some more detailed suggestions prior to this 
> week's telecon.
> Dave Raggett <dsr@w3.org> http://www.w3.org/People/Raggett
Received on Wednesday, 5 December 2007 11:49:44 UTC

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