[oslc-core] Minutes for 13 Feb OSLC Core workgroup meeting

[James Conallen]

Hi Nils,

Actually the lack of guidance on how to manage back links is not that
because we don't believe back links are a good idea.  It was an
implementation specific solution to an implementation specific problem
(displaying and querying for link information when in the context of the
object of a link), that quite frankly causes more harm than good over time
(imho).

The guidance re-affirms the basic nature of a link; a single directional
statement.

We also go to great pains to not recommend the definition of 'pairs' of
link types. This is an artificial concept that again causes more harm than
good, over the long haul.

While we don't define pairs of links, we do allow the definition of link
labels for use in user interfaces, which may be different if in the context
of the subject or the object.  But this is not a separate link type
predicate.



Thanks,

jim conallen
Rational Design Management (DM) Integration Architect, OSLC AM Lead
jconallen at us.ibm.com
Rational Software, IBM Software Group





From:	Nils Kronqvist <nils.kronqvist at find-out.se>
To:	"oslc-core at open-services.net" <oslc-core at open-services.net>,
Date:	02/14/2013 10:21 AM
Subject:	Re: [oslc-core] Minutes for 13 Feb OSLC Core workgroup meeting
Sent by:	"Oslc-Core" <oslc-core-bounces at open-services.net>



Hi,

A question around Links ..

Links are uni-directional, but often come in pairs, e.g.
oslc_cm:tracksRequirement and oslc_rm:trackedBy. And I assume a not too
uncommon case is where you don't have write access in "the other" resource
when setting up a link -- i.e. failing to create the "back link".   If for
example creating a link from RTC to another e.g. CM provider where RTC
fails to create  back link, RTC will provide warning dialog and allow to
back out or proceed.

As far as I can see there is no guidance in the specs around expected
behavior here. Needed? Is the "OSLC connected system" inconsistent when not
all back links are in place .. or .. as the
http://open-services.net/wiki/core/Find-all-links/ suggest, to find all
links you need to ask all service providers ..

Rgs,

/N

Nils Kronqvist
nils.kronqvist at find-out.se
phone: +46 76 1279272
www.find-out.se

On 13 feb 2013, at 18:41, Michael F Fiedler <fiedler at us.ibm.com> wrote:



      Minutes:  http://open-services.net/wiki/core/Meeting20130213/


      Regards,
      Mike

      Michael Fiedler
      IBM Rational Software
      fiedler at us.ibm.com
      919-254-4170


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