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Subject: RE: T2 - Assertions and Questions
David F., I would like you to clarify your example (copied below): <DavidF> In an ebXML network example, I (the From Party) might send through Ariba and then through C1 to you (the To Party). You might actually have someone hosting your MSH which has legal authority to respond with a DR. If I get a receipt from Ariba or C1, this means nothing (except that the message is proceeding on the path, which is good to know but not critical). I might not even know C1 is in the path! I need a DR (signed?) from you or your proxy (I am assuming here that C1 is not your legal proxy). </DavidF> <DavidS> I think your example does not describe the relationships between the various parties sufficiently. What is the business relationship between From Party and Ariba? Where did the To Party specify for incoming message delivery? Why are you assuming that C1 is not the legal proxy? If the To Party tells the From Party to deliver messages to C1, I contend that successful delivery to C1 is end of the line as far as the From Party is concerned. In that case, a DR from C1 is meaningful. If C1 is not the legal proxy of the To Party, it would not be used by the To Party as its designated destination for message delivery. I come back to my basic assertions on this whole topic (omitting detail which can be found in any of the 18 other messages with this subject): Assertion #1: Application-level processing of any kind is out of scope of the Message Service Specification. Assertion #2: The To Party defines the location where messages intended for it are to be sent. Assertion #3A: From a business viewpoint, there is no such thing as an unknown intermediate party. Assertion #3B: This still works in an ecommerce marketplace scenario. Assertion #3C: For our purposes, there is no such thing as a multi-hop message. </DavidS> David Smiley Director of Standards Mercator <trim/>
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