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Subject: Issue - 122 - Clearify wording for Message Exchange Patterns


This issue has been added to the wsbpel issue list. The issues list is posted as a Technical Committee document to the OASIS WSBPEL TC pages on a regular basis. The current edition, as a TC document, is the most recent document with the title in the "Issues" folder of the WSBPEL TC document list - the next posting will include this issue. The list editor's working copy, which will normally include an issue when it is announced, is available at this constant URL.

Issue - 122 - Clearify wording for Message Exchange Patterns

Status: open
Categories: Correlation
Date added: 20 Apr 2004
Submitter: Eckenfels. Bernd
Date submitted: 20 April 2004
Champion: Bernd Eckenfels (volunteering)
Document: BPEL Spec
Description: The BPEL Specification is talking about a synchronous operation to describe the fact that a two-way Message Exchnage Pattern is used for invoking or providing a service. This is a bit confusing, since synchronous is often used as a property of the binding and the transmission protocol, whereas BPEL only refers to the fact, that there is a pattern correlating a request, with and response and possible some faults.

A possible resolution would be, to remove the term synchronous, while talking about operations, in favor of the term "two way" or request-response or something similiar.

Note: it is not so easy to use the MEP names from WSDL, since they are afaik not defined for wsdl1.1 and they refer to an operation from the provider and consumer side, whereas BPEL only knows the provider side as receive/replay and the consumer side as invoke.
Links: This issue was discovered in the discussion about issue 118 : When are Correlation Sets Mandatory?
Changes: 20 Apr 2004 - new issue


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