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Re: Layering in ebXML and WSA

From: Colleen Evans <cevans@sonicsoftware.com>
Date: Fri, 14 Feb 2003 13:44:22 -0700
To: "Champion, Mike" <Mike.Champion@SoftwareAG-USA.com>
Cc: www-ws-arch@w3.org
Message-id: <3E4D5526.CB2E9B2B@sonicsoftware.com>

Hi Mike,
Fair enough (confessions of a self admitted trout pond phobic).

BTW, can't remember - why did we pick trout?  Seems like a bottom feeder might
have been more appropriate.
Colleen

"Champion, Mike" wrote:

> Hi Colleen,
>
> I should have made my position clearer.  My main interest in this is to
> clarify what WE do, not what ebXML does.  I don't think that *our* messaging
> layer will have this "CPA" type of stuff in it (whatever it is!) but I don't
> see anything in the document now that says that.  I'd like to nudge the
> discussions started at the F2F forward, and I'm sorry if this thread is
> taking it off into the weeds!
>
> Still, I think it would be useful to harvest from this thread a paragraph or
> two for the WSA doc on how the WSA accomodates or distinguishes itself from
> the ebXML messaging model.  Some (e.g. Roger) have noted that they do have a
> use case for "heavy" (sorry) B2B messaging with SOAP.  Can we learn from
> ebXML, either positively or negatively, to address such use cases?  I fear
> that if we ignore it, we'll not only fail to learn from actual experience in
> this area but also setup Frequently Asked Questions that we'll have to
> answer anyway.
>
> But if others feel that this thread is a distraction, please just ignore it
> and continue on with your productive work.  Or better yet, start an
> anti-thread that clarifies what the WSA messaging model *is* using the
> properties/relationships/constraints framework.
>
> As for BPSS and choreography, that's Martin's problem, not mine <grin>.  We
> should be dealing with that only at the highest level, not digging into it.
> I just want to know what things like "CPA" are at a high level and how they
> relate to other properties, relationships, and constraints.
>
> Thanks,
>
>
> Mike
> > -----Original Message-----
> > From: Colleen Evans [mailto:cevans@sonicsoftware.com]
> > Sent: Friday, February 14, 2003 11:33 AM
> > To: Champion, Mike
> > Cc: www-ws-arch@w3.org
> >
> > Mike,
> > While I agree there's value in doing this for ebXML users and
> > the community at large, I am concerned about the timing and
> > scope.  Where do we stop with the analysis of ebXML and WSA
> > layering?  Do we dig into BPSS and choreography as well?  If
> > we head in this direction we should carefully define and
> > bound the exercise, or we'll get into the weeds and slow down
> > our work on the architecture.
> >
> > I don't believe now is the right time to start this.  Our
> > document is in transition and we should get the core parts
> > we've identified solid before we branch off onto something
> > else.  Can we put it on the list and prioritize?
> >
> > Thanks,
> > Colleen
> >
> > "Champion, Mike" wrote:
> >
> > > I for one am a bit overwhelmed by the "layers" thread.
> > What we need,
> > > and which I think someone out there must have the ability to
> > > summarize, is a paragraph or two on how messaging works in
> > ebXML (all
> > > these acronyms such as CPA are foreign to many of us!) and how that
> > > differs from the more typical "stack" conception in various
> > Web services architectures.
> > >
> > > I don't see any responses to Roger's
> > > http://lists.w3.org/Archives/Public/www-ws-arch/2003Feb/0073.html
> > > I'm especially interested in observations on his assertion
> > that ebXML
> > > is heavily oriented toward early-bound, "heavy" B2B/EDI operations
> > > whereas typical Web services architectures are oriented toward
> > > late-bound and light operations.  This sounds plausible to
> > me, is it more or less correct?
> > >
> > > Finally, I'd like to see suggestions for how to discuss this in the
> > > WSA document. What properties, relationships, and constraints
> > > characterize ebXML messaging?
> > >
> > > Thanks for helping to direct this very informative discussion in a
> > > direction that is more useful to the WSA WG.
> > >
> > > Mike Champion
> >
Received on Friday, 14 February 2003 15:42:49 GMT

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