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Re: Policy Negotiation

From: Anthony Nadalin <drsecure@us.ibm.com>
Date: Wed, 21 Nov 2007 15:55:23 -0600
To: ashok.malhotra@oracle.com
Cc: Paul Denning <pauld@mitre.org>, public-pling@w3.org, public-pling-request@w3.org, Renato Iannella <renato@nicta.com.au>, Rigo Wenning <rigo@w3.org>
Message-ID: <OF4221D900.F8638CAA-ON8625739A.0077E9BE-8625739A.00786D97@us.ibm.com>





Suggest that you look at WS-Federation as there is a policy feedback
mechanism there under "Indicating Specific Policy/Metadata"

Anthony Nadalin | Work 512.838.0085 | Cell 512.289.4122


                                                                                                                         
  From:       ashok malhotra <ashok.malhotra@oracle.com>                                                                 
                                                                                                                         
  To:         Rigo Wenning <rigo@w3.org>                                                                                 
                                                                                                                         
  Cc:         Renato Iannella <renato@nicta.com.au>, Paul Denning <pauld@mitre.org>, public-pling@w3.org                 
                                                                                                                         
  Date:       11/21/2007 03:34 PM                                                                                        
                                                                                                                         
  Subject:    Re: Policy Negotiation                                                                                     
                                                                                                                         






OK.  Let's start with usecases.

Here is a simple usecase that comes from our developers

WS-Policy defines Policy Intersection but the result is a Boolean.
There is no feedback on why Policy Intersection failed.
Often it is because the namespace of some assertion changed.  If there
was some feedback then some follow on action could  be defined to
correct the problem.

All the best, Ashok

Rigo Wenning wrote:

>Dear all,
>
>Having done P3P and being part of the PRIME EU Project, I can tell you
>that requirements are the wrong discussion. We have to start
>discussing use cases that will create requirements. Some parts of the
>requirements generated that way are already implemented by SAML,
>XACML, kerberos and the like. Other things are more cutting edge.
>
>So instead of starting to talk about a general negotiation framework,
>I would rather start to discuss the very concrete issue we to solve.
>
>Best,
>
>Rigo
>
>
>On Wednesday 21 November 2007, ashok malhotra wrote:
>
>
>>Policy Negotiation was not in the charter of WS-Policy.  But, more
>>importantly, although several people were interested,
>>no one was able to put forward a coherent description of
>>requirements in this area.  If we want to move forward on this,
>>someone shd take a stab at setting out what we need.
>>
>>
>[..]
>
>
>>Renato Iannella wrote:
>>
>>
>[...]
>
>
>>>Some work in this area - related to rights policy negotiation -
>>>may help:
>>>
>>>
>>>
>>>
>>>
>
http://people.cs.uct.ac.za/~aarnab/drm/papers/Arnab-Hutchison-DMP-IDP-3-Proposal.pdf

>
>
>
>


--
All the best, Ashok






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Received on Wednesday, 21 November 2007 21:58:10 GMT

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