[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: RE: [dipal-discuss] FAQ: what are the basic Assertion functions, and how are they provided?
> -----Original Message----- > From: Anne Anderson [mailto:Anne.Anderson@sun.com] > Sent: Monday, Dec 19, 2005 2:25 PM > To: Frank McCabe > Cc: dipal-discuss@lists.oasis-open.org > Subject: Re: [dipal-discuss] FAQ: what are the basic > Assertion functions, and how are they provided? > > Hi Frank, > > These are good points. I think they touch partly on expressivity > requirements for a policy Assertion language and partly on an > appropriate division of functionality between the Assertions and the > policy framework in which Assertions are used. > > For issuer information, I envision this expressed at the policy > framework level (or even the policy metatdata level - the policy > envelope), and not the Assertion level. An entire policy, > including all > its Assertions, would be issued by the one issuer identified at the > policy or policy metadata level. Since we are discussing an Assertion > language to be used within some externally-specified policy framework > language, I did not include this functionality in the list of "basic > functions" for an Assertion itself. > > For subject information, there are at least three approaches. 1) The > identity of the subject is not always relevant for a web services > policy, so I don't think all policies will include a "subject". Hi Anne, Could you elaborate on (1) a bit ? I am trying to imagine the situations how a policy subject may not be relevant. I can imagine that a policy may apply to several subjects #Subject >=1, but it is a bit hard for me to imagine situations where the subject is never relevant (i.e. #Subject = 0). I am not sure why a policy will exist if there is no policy subject. Or did you mean that a policy subject is beyond WSDL component model attachment(if we were to take WS-Policy as an example...) ? Thanks, --umit
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]