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Re: Use-Cases and call for help to add descriptions and scenarios.

From: Arnaud Le Hors <lehors@us.ibm.com>
Date: Wed, 3 Oct 2012 11:53:13 -0700
To: public-ldp-wg@w3.org
Message-ID: <OFC5B6C641.8D97235E-ON88257A8C.0066E042-88257A8C.0067C039@us.ibm.com>
IBM has been struggling with the concept of two way relationships such as 
describes+describedby. While it's convenient to have two links so you can 
navigate from one resource to the other in either direction, maintaining 
those links adds a significant amount of pain and constraints.

This is clearly not the way the web of documents works. Anyone can add 
links from their web page to other pages without expecting or requiring 
reciprocity. This makes the web much more agile and resilient. But when it 
comes to data people tend to expect reciprocity and sometimes find 
unidirectional links unacceptable.

I'd like to hear what people's experience has been on that front.
--
Arnaud  Le Hors - Software Standards Architect - IBM Software Group


Kingsley Idehen <kidehen@openlinksw.com> wrote on 10/03/2012 11:04:01 AM:

> From: Kingsley Idehen <kidehen@openlinksw.com>
> To: public-ldp-wg@w3.org, 
> Date: 10/03/2012 11:05 AM
> Subject: Re: Use-Cases and call for help to add descriptions and 
scenarios.
> 
> On 10/3/12 1:41 PM, Wilde, Erik wrote:
> > On 2012-10-03 8:39 , "Steve Battle" <steve.battle@sysemia.co.uk> 
wrote:
> >> For the scenario where the URIs do differ, do you have any thoughts 
on
> >> whether POWDER would be a good approach to making the relationship 
between
> >> the non-information and information resources explicit?
> >> e.g. <http://example.com/people/alice> wdrs:describedby
> >> <http://example.com/people/alice.rdf>
> > i think this is exactly was POWDER's 'describedby' was created for, 
and
> > for making the reverse direction discoverable,
> > http://tools.ietf.org/html/draft-wilde-describes-link-01 proposes a
> > 'describes' link relation type.
> >
> > cheers,
> >
> > dret.
> >
> >
> >
> >
> 'describes' is the inverse of 'describedby'  which is semantically 
> equivalent to wdrs:describedby .
> 
> Example:
> 
> http://linkeddata.informatik.hu-berlin.de/uridbg/index.php?
> url=http://dbpedia.org/page/Linked_data&acceptheader=&useragentheader= 
> -- URI Debugger output against DBpedia URI
> 
> 
> 
> -- 
> 
> Regards,
> 
> Kingsley Idehen 
> Founder & CEO
> OpenLink Software
> Company Web: http://www.openlinksw.com
> Personal Weblog: http://www.openlinksw.com/blog/~kidehen
> Twitter/Identi.ca handle: @kidehen
> Google+ Profile: https://plus.google.com/112399767740508618350/about
> LinkedIn Profile: http://www.linkedin.com/in/kidehen
> 
> 
> 
> 
> 
Received on Wednesday, 3 October 2012 18:54:08 UTC

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