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

From: José Manuel Cantera Fonseca <jmcf@tid.es>
Date: Tue, 11 Dec 2007 17:58:56 +0100
To: Dave Raggett <dsr@w3.org>
Cc: public-uwa@w3.org
Message-id: <475EC1D0.7060802@tid.es>


Regarding location, it could be worth having a look at the reports [1] 
[2] produced by the Geospatial Incubator Group that recently ended. 
Also, it could be worth knowing more about the plans of the people 
involved in that group with respect to continuing the work

Best Regards

[1] http://www.w3.org/2005/Incubator/geo/XGR-geo/
[2] http://www.w3.org/2005/Incubator/geo/XGR-geo-ont/

Dave Raggett escribió:
> In regards to modeling contact info, Norm Walsh has done a nice job on 
> modelling vCards and hCards in RDF, see:
>         http://norman.walsh.name/2005/12/05/vcard
> 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 Tuesday, 11 December 2007 17:05:09 UTC

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