Re: Ordering of Assertions: Comment on WS-Policy Primer LCWD

David:
Please answer the question.  Is it your position that there are no 
Policies where the order in which the assertions within a Policy 
Alternative are applied is important?

Ashok

David Orchard wrote:

>I think the onus is on you to prove something, rather than me to prove
>nothing, especially if you want the WG to do something.
>
>I know you are arguing that some policies need ordering.  I'm arguing
>you need to show some policies that need ordering.
>
>Cheers,
>Dave 
>
>  
>
>>-----Original Message-----
>>From: ashok malhotra [mailto:ashok.malhotra@oracle.com] 
>>Sent: Thursday, October 11, 2007 3:28 AM
>>To: David Orchard
>>Cc: public-ws-policy@w3.org
>>Subject: Re: Ordering of Assertions: Comment on WS-Policy Primer LCWD
>>
>>I'll make it still shorter:
>>
>>I'm arguing that SOME policies need ordering.  The Policy 
>>Framework says so and the fact the there are ordering 
>>assertions in WS SecurityPolicy confirms this.
>>
>>Are you arguing that NO policies need ordering?
>>
>>Ashok
>>
>>David Orchard wrote:
>>
>>    
>>
>>>I'll make my note even shorter.  
>>>
>>>What situations are those?
>>>
>>>For the 2nd time, you have failed to specify a single situation that 
>>>requires a change to WS-Policy.  You've described a problem that 
>>>already has a solution and quotes from other people but 
>>>      
>>>
>>those are not 
>>    
>>
>>>answers to my question.
>>>
>>>In the absence of any real-world problem, the obvious thing for 
>>>WS-Policy WG to do is to close with no action.
>>>
>>>Cheers,
>>>Dave
>>>
>>> 
>>>
>>>      
>>>
>>>>-----Original Message-----
>>>>From: ashok malhotra [mailto:ashok.malhotra@oracle.com]
>>>>Sent: Wednesday, October 10, 2007 1:59 PM
>>>>To: David Orchard
>>>>Cc: public-ws-policy@w3.org
>>>>Subject: Re: Ordering of Assertions: Comment on WS-Policy 
>>>>        
>>>>
>>Primer LCWD
>>    
>>
>>>>Hi Dave:
>>>>I used the fact that WS-SecurityPolicy discusses order to 
>>>>        
>>>>
>>motivate the 
>>    
>>
>>>>need for order in at least some policies.
>>>>I also quoted from the note from Tony Rogers.  
>>>>        
>>>>
>>Subsequently, there was 
>>    
>>
>>>>a note from Bob Natale who agrees that order is important 
>>>>        
>>>>
>>but does not 
>>    
>>
>>>>like the solution I suggested.
>>>>
>>>>What needs to be made clear is that order is not important in all 
>>>>policies, but there are situations where it is important 
>>>>        
>>>>
>>and for these 
>>    
>>
>>>>situations we need a solution.
>>>>
>>>>Ashok
>>>>
>>>>David Orchard wrote:
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>>>>>-----Original Message-----
>>>>>>From: public-ws-policy-request@w3.org 
>>>>>>[mailto:public-ws-policy-request@w3.org] On Behalf Of 
>>>>>>            
>>>>>>
>>ashok malhotra
>>    
>>
>>>>>>Sent: Wednesday, October 10, 2007 9:56 AM
>>>>>>To: public-ws-policy@w3.org
>>>>>>Subject: Ordering of Assertions: Comment on WS-Policy Primer LCWD
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>><snip/>
>>>>>
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>>>In many cases the
>>>>>>order in which assertions are processed may not matter, but
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>where it
>>>>   
>>>>
>>>>        
>>>>
>>>>>>does matter do we need to specify a special assertion for
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>every pair
>>>>   
>>>>
>>>>        
>>>>
>>>>>>of assertions that need to be ordered? Clearly, this is not
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>feasible
>>>>   
>>>>
>>>>        
>>>>
>>>>>>as the Policy processing engine will need to be undated
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>whenever a new
>>>>   
>>>>
>>>>        
>>>>
>>>>>>ordering assertion is added. So, what we need is a 
>>>>>>            
>>>>>>
>>general-purpose 
>>    
>>
>>>>>>ordering assertion.
>>>>>>  
>>>>>>
>>>>>>       
>>>>>>
>>>>>>            
>>>>>>
>>>>>Your note jumps from assumption to conclusion to design with great 
>>>>>speed, indeed from assumption to conclusion within 3
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>sentences.  Those
>>>>   
>>>>
>>>>        
>>>>
>>>>>3 fleety sentences do not answer my previous emails central
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>question of
>>>>   
>>>>
>>>>        
>>>>
>>>>>"when does order matter?".  In case my question was 
>>>>>          
>>>>>
>>missed, perhaps 
>>    
>>
>>>>>because of burdensom length of my previous message, I'll ask
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>again more
>>>>   
>>>>
>>>>        
>>>>
>>>>>succinctly:
>>>>>
>>>>>When does order matter?  
>>>>>
>>>>>Until the use case is agreed by the WG, design discussions 
>>>>>          
>>>>>
>>are very 
>>    
>>
>>>>>premature IMHO.
>>>>>
>>>>>Cheers,
>>>>>Dave
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>     
>>>>>
>>>>>          
>>>>>
>>>>--
>>>>All the best, Ashok
>>>>
>>>>   
>>>>
>>>>        
>>>>
>>> 
>>>
>>>      
>>>
>>--
>>All the best, Ashok
>>
>>    
>>


-- 
All the best, Ashok

Received on Thursday, 11 October 2007 20:35:07 UTC