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Subject: [ebxml-msg] RE: Public usage scenario documents
My reply to David Webber was rejected by ebtwg@lists.ebtwg.org with the
following error message:
550 Mailbox unavailable: This site may not be used as a relay agent.
I don't know whether this is a temporary or "permanent" problem. Someone
who knows where to report problems might want to forward this to the
appropriate place.
Regards,
Marty
*************************************************************************************
Martin W. Sachs
IBM T. J. Watson Research Center
P. O. B. 704
Yorktown Hts, NY 10598
914-784-7287; IBM tie line 863-7287
Notes address: Martin W Sachs/Watson/IBM
Internet address: mwsachs @ us.ibm.com
*************************************************************************************
David RR Webber -
XMLGlobal To: Martin W Sachs/Watson/IBM@IBMUS
<Gnosis_@compuser cc: "Cutler, Roger (RogerCutler)" <RogerCutler@chevrontexaco.com>,
ve.com> ebxml-msg@lists.oasis-open.org, Randy Clark <Randy.Clark@bakerhughes.com>,
"'bhaugen'" <linkage@interaccess.com>, eBTWG List <ebtwg@lists.ebtwg.org>,
05/28/2002 12:14 "'Duane Nickull'" <duane@xmlglobal.com>, Christopher Ferris
AM <chris.ferris@sun.com>
Subject: RE: Public usage scenario documents
Message text written by Martin W Sachs
> Both parties to the message exchange MUST persist enough state to
allow recovery and getting back in sync. Specific state variables must
be prescribed. They are at least those variables needed to restore
the state of the transaction and conversation after system recovery, such
as the conversation ID, CPA Id, service, action, and perhaps other
parts of the message header.
Timeouts and retries, as prescribed in the MSG spec, are not
sufficient to cover system failures since the failure could last a very
long time.
<<<<<<<<<<<<<<<<<<<<<<<
Marty,
There appears to me to be no big surprise there. I would say this was
EDI 101 - and that we hardly need things in the spec' which teach
people how to build applications systems.
People who know how to build product will include these feature sets
and augment them according to their customer base requirements.
So we do not need to teach this - and worse - it potentially forces
people to build this in - even if their use case / customer model
can use a lesser level of functionality quite happily.
We have avoided this with Registry for example.
If you are building a reliable messaging product - you are going to
have a all manner of features in it over and above - like being able
to check that the confirmation was signed by someone with
a wristwatch on their left arm, et al/
Or worse - what about hardware level verification of tamperproof
retention for authentication in a five year time frame? At some point
you have to quit and know - this is outside our scope.
Let's not confuse functional level detail - with technical specifications.
Cheers, DW.
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