W3C home > Mailing lists > Public > public-ws-chor@w3.org > May 2003

pi-calculus ...

From: Jean-Jacques Dubray <jjd@eigner.com>
Date: Tue, 6 May 2003 17:38:47 -0400
To: "'Steve Ross-Talbot'" <steve@enigmatec.net>, <public-ws-chor@w3.org>
Message-ID: <004001c31417$f4964d00$1a78050a@JJD>

Two more points from the discussion. 
1) ultimately, I think that it will be possible to map the ws-chor
metamodel to the pi-calculus metamodel (since pretty much all message
exchange can be modeled with pi). As a result, one can view ws-chor
metamodel as syntactic sugar as it was expressed in the call, but this
sugar also helps reducing the need for PhD to write chor-definitions.

2) Would it be a good time to start collecting ws-chor metamodel
elements (e.g. role, MEPs, ...). I know we are not done yet through the
requirements, that might help people formulate more requirements (e.g.
if we have role, we need to define a binding one way or another, ...) I
could volunteer for that task. 

Cheers,

Jean-Jacques 
 
 

>>-----Original Message-----
>>From: public-ws-chor-request@w3.org
[mailto:public-ws-chor-request@w3.org]
>>On Behalf Of Assaf Arkin
>>Sent: Tuesday, May 06, 2003 4:14 PM
>>To: jdart@tibco.com
>>Cc: Steve Ross-Talbot; public-ws-chor@w3.org
>>Subject: Re: CSF's and choreography - at least it alludes to some.....
>>
>>
>>Jon Dart wrote:
>>
>>>
>>>
>>> Assaf Arkin wrote:
>>>
>>> > To make it absolutely clear, in my opinion the choreography should
at
>>> > the minimum be able to express the WS interactions with the same
>>> > capabilities presented in WSBPEL.
>>>
>>> Does this entail duplicating what the "external" portion of WSBPEL
>>> does? (and if not what other things does it do)?
>>
>>Yep.
>>
>>>> It's much better to start
>>>> with something we already have, for example WSCI: refactor it to
meet
>>>> the minimum list of CSFs and to leverage WSDL 1.2 and then extend
it
>>>> with the other features we deem necessary.
>>>
>>>
>>> WSCI does need to be considered at some point, although we may find
it
>>> does not meet all identified requirements.
>>
>>Absolutely. This is just my opinion that it's close enough to what we
need.
>>
>>arkin
>>
>>>
>>> --Jon
>>>
>>>
>>>
>>
>>
>>--
>>"Those who can, do; those who can't, make screenshots"
>>
>>----------------------------------------------------------------------
>>Assaf Arkin                                          arkin@intalio.com
>>Intalio Inc.                                           www.intalio.com
>>The Business Process Management Company                 (650) 577 4700
>>
>>
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Received on Tuesday, 6 May 2003 17:41:11 GMT

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