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RE: [Bug 6403] Enumeration: define policy

From: Geoff Bullen <Geoff.Bullen@microsoft.com>
Date: Mon, 27 Apr 2009 09:57:14 -0700
To: "public-ws-resource-access@w3.org" <public-ws-resource-access@w3.org>
Message-ID: <5AAAA6322448AA41840FC4563A30D6E843A0176175@NA-EXMSG-C122.redmond.corp.microsoft.com>
In general, we are OK with your proposal for Issue 6403.  Here are our general comments on the proposal.  I will be happy to provide more concrete suggestions in a subsequent email as we are heads-down processing multiple WS-RA issues at the moment.

A)	The <x:FilterDialect> is not a concrete policy assertion but a template. This is the first of a kind. How can the WS-RA WG provide an XML Schema definition to specify the syntax of the assertion?
Why not just define a policy assertion for the XPath filter dialect?

We do not understand what is the justification of the statement:
	"the namespace of this element is application defined, but the Local Name MUST be "FilterDialect""
Why is element matching not using namespaces here?

  This attribute specifies that the assertion is optional per WS-Policy. This attribute MUST be present

B)	The proposal mandates the use of wsp:Optional attribute. But the minimum here would be to allow the use of the attribute and defer the usage of it to service providers.

C)	Would it be useful to check if the proposed assertion follows the best practices outlined in the 'Web Services Policy 1.5 - Guidelines for Policy Assertion Authors' doc [1]. 

At a glance, it appears that the proposal does not follow best practices 6, 8, 9, 15, 20, 29 and 31.


[1] http://www.w3.org/TR/2007/NOTE-ws-policy-guidelines-20071112/#best-practices-list

-----Original Message-----
From: public-ws-resource-access-notifications-request@w3.org [mailto:public-ws-resource-access-notifications-request@w3.org] On Behalf Of bugzilla@wiggum.w3.org
Sent: Tuesday, April 21, 2009 1:39 PM
To: public-ws-resource-access-notifications@w3.org
Subject: [Bug 6403] Enumeration: define policy


--- Comment #4 from Robert Freund <bob@freunds.com>  2009-04-21 20:38:56 ---
modified proposal as above with the following:

insert after :/wsenp:WSEnumeration/wsp:Policy/x:FilterDialect
An endpoint should include a filterdialect policy assertion for each of the
filter dialects that it supports.

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Received on Monday, 27 April 2009 16:58:09 UTC

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