RE: [ebxml-dev] Question about DeliveryReceipt and Acknowledgmentmessage

[David Fischer <david@drummondgroup.com>]

Dick is correct.

In v1.0, DeliveryReceipt was end-to-end and Acknowledgment was next-hop.
DeliveryReceipt was deleted for v2.0 and Acknowledgment was used for both
end-to-end and next-hop (with the use of an actor).

Regards,

David Fischer
Drummond Group.

-----Original Message-----
From: Dick Brooks [mailto:dick@tech-comm.com]
Sent: Tuesday, January 29, 2002 7:34 PM
To: Lee, Teho; Ebxml-Dev (E-mail); ebMXL MS (E-mail)
Cc: Ian Jones
Subject: RE: [ebxml-dev] Question about DeliveryReceipt and
Acknowledgment message


Teho,

I don't know if the semantics have changed between V1.0 and 2.0 but in V1.0
a Delivery Receipt was used to indicate a message was "delivered" to a
backend application, whereas an "Acknowledgement" indicates successful
delivery of a message between MSH's, nothing more.

Have these semantics changed with V2.0?


Dick Brooks
Systrends, Inc
7855 South River Parkway, Suite 111
Tempe, Arizona 85284
Web: www.systrends.com <http://www.systrends.com>
Phone:480.756.6777,Mobile:205-790-1542,eFax:240-352-0714


-----Original Message-----
From: Lee, Teho [mailto:TLee@iona.com]
Sent: Tuesday, January 29, 2002 3:02 PM
To: Ebxml-Dev (E-mail); ebMXL MS (E-mail)
Subject: [ebxml-dev] Question about DeliveryReceipt and Acknowledgment
message


Hi,

In ebXML MS spec v1.18, line 1408, it says "The Delivery Receipt mechanism
MAY also be used to perform End-to-End Reliable Messaging by acting as an
Acknowledement Message.".

To me, the Acknowledgment message is like a functional ack to be sent only
if the message received is structurally correct. While the DeliveryReceipt
is a MSH-level ack which will be sent, if requested, regardless of the
correctness of the original message. If this is correct, potentially as a
sender of the original request message, I may receive a DeliveryReceipt
message and later an Acknowledgment(as positive ack) or an ErrorList
message(as negative ack). I'm wondering if the spec actually means the
DeliveryReceipt element, if requested, is to be part of Acknowledgment
message.

Could someone shed some light on this?

[Legends]
DeliveryReceipt message: message containing DeliveryReceipt element.
Acknowledgment message: message containing Acknowledgment element.
ErrorList message: message containing ErrorList element.


Teho Lee

IONA
END 2 ANYWHERE
Tel (408) 350-9533


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