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Fwd: A trial balloon distinction between choreography & orchestration

From: Steve Ross-Talbot <steve@enigmatec.net>
Date: Wed, 12 Nov 2003 07:32:17 +0000
To: public-ws-chor@w3.org
Message-Id: <57972746-14E2-11D8-A9F7-000393D13C9A@enigmatec.net>

As an aside from all of the stuff going on in requirements I would be 
interested on peoples take on what Frank postulated as a distinction 
between the O word and the C word. As a guiding principle in how we may 
view a CDL is this helpful?

Suppose we changed it slightly to read:

	A written choreography description documents how a set of Web Services 
should be "used".

This minor change could then incorporate design-time use as well as 
run-time use (for conformance and compliance to a choreography).

On the other hand WS-BPEL executable processes falls into the latter 
(the O-word) and abstract processes  are a modified lesser form of 
contract such as:

	A written business protocol (i.e. abstract WS-BPEL) description 
describes how a single Web Service 	should be "used".

Just a thought ....

Cheers

Steve T

Begin forwarded message:

> Resent-From: public-ws-chor@w3.org
> From: Frank McCabe <frankmccabe@mac.com>
> Date: Tue Sep 23, 2003  2:36:33  am Europe/London
> To: public-ws-chor@w3.org
> Subject: A trial balloon distinction between choreography & 
> orchestration
>
>
> I am aware that the O word is taboo. However, the following occurred 
> to me during the last F2F:
>
> A written choreography description documents how to *use* a set of Web 
> services
> A written orchestration description documents how to *control* a set 
> of Web services
>
> Comments?
> Frank
>
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This email is confidential and may be protected by legal privilege. If you are not the intended recipient,  please do not copy or disclose its content but  delete the email and contact the sender immediately. Whilst we run antivirus software on all internet emails we are not liable for any loss or damage. The recipient is advised to run their own antivirus software.
Received on Wednesday, 12 November 2003 03:42:50 GMT

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