Re: assertion classes

Fabian,
I can't help but notice the similarity to the "usage" assertion attribute 
in the first version of the spec[ 
http://download.boulder.ibm.com/ibmdl/pub/software/dw/specs/ws-polfram/ws-policy2003.pdf] 
 :-)

The problem we ran into was how is this "class" or "attribute"  processed 
in the intersection and merge operations?
And what processing can the framework do? and what is left to the 
individual domains ( i.e, how do I know
if I'm a proprietary requestor? or a proprietary provider? ( I must 
confess, this one baffles me a bit....but maybe its like the "ignored").

Could you please elaborate on how this proposal for "classes" affects the 
following:
attachment models ( WSDL, UDDI, etc)
intersection
policy authoring
what is normative?
what is a "guideline"?

Maryann

Value
Meaning
wsp:Required
The assertion must be applied to the subject.  If the subject does not 
meet the criteria expressed in the assertion a fault or error will occur.
wsp:Rejected
The assertion is explicitly not supported and if present will cause 
failure.
wsp:Optional
The assertion may be made of the subject but it is not required to be 
applied.
wsp:Observed
The assertion will be applied to all subjects and requesters of the 
service are informed that the policy will be applied.
wsp:Ignored
The assertion is processed, but ignored.  That is, it can be specified, 
but no action will be taken as a result of it being specified. Subjects 
and requesters are informed that the policy will be ignored.




Fabian Ritzmann <Fabian.Ritzmann@Sun.COM> 
Sent by: public-ws-policy-request@w3.org
10/10/2006 01:32 PM

To
public-ws-policy@w3.org
cc

Subject
assertion classes






Hi,

I tried to assemble a few characteristics of different classes of 
assertions in the attached paper. This represents a very simplistic 
view, but I hope it can help to untangle some tarballs and gain more 
clarity in the discussions on optionality, advisory, and local policies 
and assertions.

Fabian

-- 
Fabian Ritzmann
Sun Microsystems, Inc.
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