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Re: NEW ISSUE: New Attribute keyword to identify 'local' policies #3721

From: Fabian Ritzmann <Fabian.Ritzmann@Sun.COM>
Date: Mon, 09 Oct 2006 19:21:04 +0300
To: Daniel Roth <Daniel.Roth@microsoft.com>
Cc: Sergey Beryozkin <sergey.beryozkin@iona.com>, Frederick Hirsch <frederick.hirsch@nokia.com>, "Yalcinalp, Umit" <umit.yalcinalp@sap.com>, "public-ws-policy@w3.org" <public-ws-policy@w3.org>
Message-id: <452A76F0.5040209@Sun.COM>

Daniel Roth wrote:
>
> One of the conclusions of the WS-Policy interop workshop held in 
> Germany was that even if a policy expression contains an unrecognized 
> policy assertion tools can issue a warning and ignore it. 
>

At the interop workshop we only tested very simple scenarios where the 
client would read the policy of a service. I don't think we have assured 
that this model can still work in more complex scenarios with multiple 
actors that are aware of policy and policies attached to various entities.

> However, these warning are annoying and alarming to customers, so 
> implementers should avoid leaking out local config assertions.
>

I agree if these assertions only have a meaning to the entity to which a 
policy is attached. But you might e.g. have service brokers that 
understand only those assertions that are necessary for their operation, 
while the actual services and clients have a richer vocabulary. Or you 
might have service assertions that are proprietary to a vendor and only 
have a meaning for the web service clients from that vendor.

Fabian
Received on Monday, 9 October 2006 16:21:00 GMT

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