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Subject: Re: [xacml] examples in specification
Hi, Seth >the example implies something about the specification that isn't true >(ie, that the PDP will interpret the contents of assignments), at least >as I read the specification. I don't agree that the example in section 188.8.131.52 isn't true. The obligation described in that rule is "email" with three arguments, an email address in the medical record referred by a specific XPath, a text string, and subject id in the request context. These three arguments are not for PDP but for PEP. PDP does not have to interpret those arguments and the whole text string below the obligation element is sent back to PEP as a part of the decision. No interpretation by PDP is not required. Instead, PEP must understand those parameters but this kind of agreement between PDP and PEP is already assumed, as described in section 5.35. Michiharu Seth Proctor <Seth.Proctor@Sun To: firstname.lastname@example.org .COM> cc: Subject: [xacml] examples in specification 2003/10/22 00:32 [With everyone at the F2F I don't expect a quick response, but I figured that if things are getting slow, this will give you something to discuss <g>] I've spent the better part of this morning trying to explain how Obligations work. The question came up because of the example in section 184.108.40.206 (Rule 3). In this example, AttributeAssignments contain AttributeSelectors and AttributeDesignators. While this isn't illegal, the example implies something about the specification that isn't true (ie, that the PDP will interpret the contents of assignments), at least as I read the specification. This isn't the first example that has caused confusion. I know all work items were supposed to be submitted before the F2F, but I would like to propose that we review & correct all examples before the 2.0 release. I don't think this is a work item so much as a natural requirement of releasing a major-version revision of a specification, but I haven't heard any discussion on the topic. Thoughts? seth To unsubscribe from this mailing list (and be removed from the roster of the OASIS TC), go to http://www.oasis-open.org/apps/org/workgroup/xacml/members/leave_workgroup.php .