Re: ebBP / BPMN extensions

[Stephen A White <wstephe@us.ibm.com>]

Jean-Jacques,

Thank you for your suggested extensions
to BPMN. I have forwarded this to the BPMN working group and I will put
it on our agenda for our concall next week.

I expect that we will have comments
and questions on the extensions. I will forward them as they come up.

-Steve
________________________________________________
Stephen A. White, Ph.D.
BPM Architect
WebSphere Business Integration Strategy and  Architecture 
Software Group
714-438-5590
wstephe@us.ibm.com

"Jean-Jacques Dubray" <jeanjadu@Attachmate.com>

08/23/2004 02:06 AM

To	"Monica Martin" <Monica.Martin@Sun.COM>, <dmoberg@cyclonecommerce.com>
cc	Stephen A White/Irvine/IBM@IBMUS, "ebXML BP" <ebxml-bp@lists.oasis-open.org>
Subject	ebBP / BPMN extensions

This is my proposal for a few extensions
to BPMN to be able to represent the choreography of collaborations. Here
is an example (Process PO collaboration).

The double line activity represent a business
transaction (we may want to use special symbols or lining scheme for indicating
the need for or lack of signals)
 
The dashed line represent the direction (initiating
to responder), the response flow is not indicating. When two flows cross
the activity (e.g. Cancel) it means that both parties can initiate that
transaction.
 
Optionally, we can represent the message
flow (PO / Ack PO).
 
The little circle on each side of the BTA
represent an endpoint. The private process connects to these end points
(not fully represented here).
 
I had to create a new gateway which acts
as both a fork and a join. This means that change PO and Cancel PO can
happen as many times as we need to, until a time out occurs. Note that
the semantic of a fork gateway in a collaboration means that the BTA is
enabled, not that it is necessarily executed.
 
It is start is agreeable, I will do a complete
analysis of what maps and does not map to a collaboration. 
 
Thanks,
 
JJ-