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RE: Revised positions for closed/open world assumptions

From: Ashok Malhotra <ashok.malhotra@oracle.com>
Date: Thu, 17 May 2007 16:06:31 -0700
To: "Christopher B Ferris" <chrisfer@us.ibm.com>, "public-ws-policy@w3.org" <public-ws-policy@w3.org>
Message-ID: <20070517160631245.00000003552@amalhotr-pc>

In your latest note in this thread you proposed 


Proposed text added to section 4.5: 

      If an initiating entity includes a policy assertion type A in its policy, and this policy assertion type A 
        does not occur in an intersected policy, then the initiating entity does not apply the behavior implied by 
        assertion type A.


I have two concerns about this proposal:


1.	It does not say anything about the policy of the responder.  Is the behavior different in the other direction?  I think not.
2.	The policy intersection algorithm is direction independent.  This proposal introduces direction dependency and I'm wary of that.  If we go that way then I would like to bring up the complex of ideas that say that the initiator expresses constraints - what you must do, and the responder expresses capabilities - what I can do and intersection works differently if viewed from the two directions.  If we go that route then this leads naturally into the wildcard matching that DaveO and I have been proposing.


All the best, Ashok 
Received on Thursday, 17 May 2007 23:08:15 UTC

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