[ogsa-wg] FW: Issue #1 proposed resolution

Steve Tuecke tuecke at univa.com
Fri Jan 21 15:55:11 CST 2005


As far as I can tell, this decision has basically no effect on WSRF.  
The argument being made by some in the WS-A working group is that it is 
equivalent and more true to the Web to carry a resource identifier as 
part of the EPR address, rather than in a separate ResourceProperties 
field -- that is, the resource reference should all be in the URI, 
rather than split between a URI and separate resource properties.  
Implementation-wise it certainly makes very little difference.  And the 
WSRF working group had already abstracted the WS-Resource reference and 
access pattern, so that it is not tightly coupled to WS-A and reference 
properties anyway, so WSRF specification-wise it makes no difference.

-Steve

On Jan 21, 2005, at 1:59 PM, Ian Foster wrote:

> I think the technical term is "carefully architected set of 
> specifications" not "house of cards" (-:
>
>  Regards -- Ian.
>
>
>  At 05:10 PM 1/21/2005 +0000, Djaoui, A (Abdeslem) wrote:
>
> Well, it probably doesn't, because WSRF is now decoupled from 
> WS-Addressing
>  through the definition of the "abstract" resource Access Pattern, 
> which
>  defines different embodiments for different ways of accessing state.
>
>
>  Abdeslem
>  ///////////////
>
>  -----Original Message-----
>  From: Stephen Pickles [mailto:stephen.pickles at manchester.ac.uk]
>  Sent: 21 January 2005 17:05
>  To: 'Djaoui, A (Abdeslem)'; 'OGSA-WG'
>  Subject: RE: [ogsa-wg] FW: Issue #1 proposed resolution
>
>  Doesn't this make the whole house of cards (WSRF and OGSA)
>  come tumbling down?
>
>  Please tell me I'm wrong!
>
>  Stephen
>
>  > -----Original Message-----
>  > From: owner-ogsa-wg at ggf.org [mailto:owner-ogsa-wg at ggf.org] On
>  > Behalf Of Djaoui, A (Abdeslem)
>  > Sent: 21 January 2005 09:47
>  > To: 'OGSA-WG'
>  > Subject: [ogsa-wg] FW: Issue #1 proposed resolution
>  >
>  >
>  > Just in case you have not seen this, It appears RefProps will
>  > be removed
>  > from EPR's. Something we should discuss.
>  >
>  > Abdeslem
>  > /////////////////
>  >
>  > -----Original Message-----
>  > From: public-ws-addressing-request at w3.org
>  > [mailto:public-ws-addressing-request at w3.org]On Behalf Of Ugo Corda
>  > Sent: 20 January 2005 01:33
>  > To: Mark Little; Mark Baker
>  > Cc: public-ws-addressing at w3.org
>  > Subject: RE: Issue #1 proposed resolution
>  >
>  >
>  >
>  > Mark and Mark,
>  > It looks like RefProps are gone as of yesterday: see
>  > http://www.w3.org/2002/ws/addr/wd-issues/#i001 .
>  >
>  > Ugo
>  >
>  > > -----Original Message-----
>  > > From: public-ws-addressing-request at w3.org
>  > > [mailto:public-ws-addressing-request at w3.org] On Behalf Of
>  > Mark Little
>  > > Sent: Wednesday, January 19, 2005 5:26 PM
>  > > To: Mark Baker
>  > > Cc: public-ws-addressing at w3.org
>  > > Subject: Re: Issue #1 proposed resolution
>  > >
>  > >
>  > >
>  > > Mark, I have a distinct dislike for RefProps/RefParams, as
>  > > you're aware. However, putting my pragmatic hat on for a
>  > > moment, I don't see them vanishing in this release of the
>  > > specification. That doesn't prevent us from debating their
>  > > utility (or lack thereof), but I suspect it would be better
>  > > to take it off this mailing list if we're to try to maintain
>  > > the timeline that was proposed by the submitters and agreed
>  > > upon by the members of the group. Who knows, there may be a
>  > > change in a subsequent release?
>  > >
>  > > Also, I'm not sure why you moved my text around, but it could
>  > > change the context of what was originally intended. I didn't
>  > > mention the word "identification" at all in the proposed
>  > text I said.
>  > >
>  > > Mark.
>  > >
>  > > ----
>  > > Mark Little,
>  > > Chief Architect,
>  > > Arjuna Technologies Ltd.
>  > >
>  > > www.arjuna.com
>  > >
>  > >
>  > > ----- Original Message -----
>  > > From: "Mark Baker" <distobj at acm.org>
>  > > To: "Mark Little" <mark.little at arjuna.com>
>  > > Cc: <public-ws-addressing at w3.org>
>  > > Sent: Thursday, January 20, 2005 12:26 AM
>  > > Subject: Re: Issue #1 proposed resolution
>  > >
>  > >
>  > > > Mark,
>  > > >
>  > > > On Wed, Jan 19, 2005 at 10:41:53PM -0000, Mark Little wrote:
>  > > > > I think the pragmatic view on RefProps/RefParams has to
>  > > be that they
>  > > will
>  > > > > stay (rightly or wrongly, there are implementations and
>  > > > > specifications
>  > > out
>  > > > > there that now rely on them).
>  > > >
>  > > > This is a new spec we're working on, no?  Those
>  > implementations can
>  > > > continue to depend upon whatever version of the spec they
>  > currently
>  > > > depend upon.  Nothing we do here can break them, AFAICT.
>  > > >
>  > > > > I agree that the term "identifier" can be
>  > > > > contentious. However, so can the term "state". How about just
>  > > > > calling it/them "additional information that referencing
>  > > > > specifications [aka
>  > > using
>  > > > > specifications] or implementations need in order to ultimately
>  > > > > address
>  > > the
>  > > > > endpoint service"?
>  > > >
>  > > > >From my POV, there appears to be agreement to removing
>  > the part of
>  > > > >the
>  > > > spec that talks about using RefProps for identification. 
>  > > Adding "in
>  > > > order to ultimately address" back in would be akin to
>  > undoing that
>  > > > change.  The point of the change, as I see it, is to get
>  > > identifying
>  > > > information out of the RefPs, and into the URI, and I
>  > > consider that an
>  > > > enormous improvement over the WS-A submission.
>  > > >
>  > > > > That way we're not saying *what* goes in there, only
>  > > > > *why*.
>  > > >
>  > > > IMO, identification is a "what".
>  > > >
>  > > > Mark.
>  > > > --
>  > > > Mark Baker.   Ottawa, Ontario, CANADA.       
>  > > http://www.markbaker.ca
>  > > >
>  > >
>  > >
>  > >
>  >
>  >
>
>  _______________________________________________________________
> Ian Foster                    www.mcs.anl.gov/~foster
>  Math & Computer Science Div.  Dept of Computer Science
>  Argonne National Laboratory   The University of Chicago   
>  Argonne, IL 60439, U.S.A.     Chicago, IL 60637, U.S.A.
>  Tel: 630 252 4619             Fax: 630 252 1997
>          Globus Alliance, www.globus.org
>





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