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Subject: Issue - 99 - New issueTriggering activities for abstract processes

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 - 99 - New issueTriggering activities for abstract processes

Status: open
Area: Abstract processes
Date added: 3 Mar 2004
Submitter: Ivana Trickovic
Date submitted: 03 March 2004
Description: The current version (BPEL4WS v1.1, May 2003) specifies that each process (either executable or abstract) must contain at least one "start activity" (start activity is either a receive activity or a pick activity that receives a message and is annotated with the createInstance attribute set to "yes" to indicate that the occurrence of that activity causes a new instance of the process to be created).

This restriction makes less sense for BPEL abstract processes. Because of this restriction, the abstract process of the party that initiates a message exchange must be extended and a start activity must be introduced (also additional WSDL elements, such as port types, messages, must be defined as well as partner link type). But how the initiating process is started is an implementation detail and does not have to be included in the BPEL abstract process since it is not part of the "business protocol".

Submitter's proposal: Allow the invoke activity to be used as the start activity for abstract processes.
Changes: 3 Mar 2004 - new issue

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