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Subject: Minutes for 22 October 2009 TC Meeting
Time: 10:00 am EDT *** Note USA still EDT (not EST) *** Tel: 513-241-0892 Access Code: 65998 Minutes for 22 October 2009 TC Meeting: 10:00 - 10:05 Roll Call: Voting: Erik Rissanen Paul Tyson Gareth Richards Jan Herrmann Bill Parducci Rich Levinson Hal Lockhart Dilli Arumugam Seth Proctor John Tolbert David Staggs Non-Voting: Prateek Mishra we have quorum Approve Minutes: 15 October 2009 TC Meeting http://lists.oasis-open.org/archives/xacml/200910/msg00048.html No objection to appoval: approved. 10:05 - 10:10 Administrivia Meeting time: 10AM USA ET (still EDT, has caused confusion in past) http://lists.oasis-open.org/archives/xacml/200910/msg00068.html Europe, also has yet to change. XSPA progress to OASIS Standard: Ballot available: 1 vote per OASIS Member org: http://lists.oasis-open.org/archives/xacml/200910/msg00055.html Voting period (Oct 16 - Oct 31, 2009, 11:45PM ET) Call for vote: Detailed voting instructions: http://lists.oasis-open.org/archives/xacml/200910/msg00056.html Dave: have about 25 votes so far, about 1/2 of needed. Hal: if people have question who there org rep is, he can provide info for their org. XACML TC F2F planning: Straw Poll ballot: preferred dates,locations: http://lists.oasis-open.org/archives/xacml/200910/msg00062.html Hal: about 50-50 east coast west coast but slight pref for west coast, so focus redwood city, 2nd week of Dec duration: 2-3 days, tentatively Tue-Thu: Dec 8,9,10 10:10 - 11:00 Issues Issue list reference http://lists.oasis-open.org/archives/xacml/200910/xls00000.xls New Issues: Multiple meanings of term "xpath-expression" - looking for clarity: (spinoff from issues 13,14,21) in Mult profile http://lists.oasis-open.org/archives/xacml/200910/msg00049.html Jan: people get confused w multiple context of xpath-expr Erik: literal value for scope of attributes. Rich: issue not in spreadsheet yet Hal: proposed resolution: clarify text in appropriate context -> Note: need a new issue number for this small editing change Reg-exp vs xpath analysis, in conjunction w issue 11: Hier: resource-id, performance consideration: http://lists.oasis-open.org/archives/xacml/200910/msg00050.html discussion: http://lists.oasis-open.org/archives/xacml/200910/msg00054.html Erik: w xpath matching, need to enumerate all nodes spec'd by the policy regexp operates on xpath expression itself not sure of complexity of xpath; could be valuable to have more direct approach on expressions best approach make xpath expression more strictly defined. does think regexp has some issues for knowing scope Hal: other discussions, running xpath backwards not feasible non-terminating, leads to infinite calculations Erik: indiv res can match into the DOM, more context w/o resource Rich: this discussion is closely related to proposal Hal: identifying resources is separate problem from obtaining elements and attrs from xml document. selectors avoid designators; 3rd case is when you have xml resources. Paul: thinks it is covered by other mechanisms, not needed Resolution: this does not appear to be a new issue, it appears to be more background material for issue 11. Proposal to change MULT profile: to clarify resource-id formats, MAD: http://lists.oasis-open.org/archives/xacml/200910/msg00052.html http://lists.oasis-open.org/archives/xacml/200910/msg00053.html Paul: msg 53: line 64-74; when you implement this it is important for users to know what is going to happen when they issue a request. Multiple requests from single results. scope attrs when xml content; a->e branches on what you do based on scope. Jan: for whole hierarchy requires multiple individual requests results in one decision. Paul: seems out of place in mult profile Jan: entire hierarchy -> first have descendants as resource-ids might want to say how you want results combined; ex scope is children and want one result, can't currently do. Might have attr for aggregation of responses. Paul: still doesn't understand why can't be done w existing mech. Rich: missing scope entire hierarchy vs descendants not matched by xxx vs children; Jan's proposal could elim need for entire hierarchy section w aggregation attr Paul: understands option is for one answer, w different input scopes. Paul: in proposed steps (number "4" is missing, but steps are ok and just 5->n becomes 4->n-1. Rich: need a little time to go thru algorithm proposed. Hal: where is Jan constrained from what doing Jan: multiple category attrs, independent of his current concerns. do not have multiple category issue yet Hal: that is "outer loop" Jan: concern is unique id attributes Paul: issue w categories? Jan: no reqt to use that approach. Hal: proposals on table: 1. paul approach w small tweaks, xml doc and xpath can do what's needed 2. run regexp over xml is namespace issue, rich proposal names nodes in xml doc for reg exp Jan: how does xpath do the identity test? How is unique name for this node. Erik: internal pointer ref. Point on clark notation, there is some mechanism in xpath Paul: evaluate in context of existing features Hal: if we can solve using off the shelf tools, better than inventing our own. Hal: our problem of naming a node explicitly in xpath may not be what xpath designed to do, but erik mentioned a possible mechanism. Resolution: Hal: will try to organize what needs to be decided ************************** Bill: picked up straggler roll call Meeting adjourned 11:05 AM (items below not discussed except where noted) ************************** Resource xpath and XPathCategory issues: http://lists.oasis-open.org/archives/xacml/200910/msg00057.html discussion: http://lists.oasis-open.org/archives/xacml/200910/msg00059.html Follow-up info on #54: delegation/admin http://lists.oasis-open.org/archives/xacml/200910/msg00060.html #54 Issue instant attribute http://lists.oasis-open.org/archives/xacml/200909/msg00063.html discussion: http://lists.oasis-open.org/archives/xacml/200910/msg00066.html http://lists.oasis-open.org/archives/xacml/200910/msg00067.html Erik withdraws issue to postpone to later time DEFERRED until after 3.0. #11 Hier URI Ref Profile Proposal http://lists.oasis-open.org/archives/xacml/200910/msg00030.html discussion: multiple comments and replies/clarifications: http://lists.oasis-open.org/archives/xacml/200910/msg00058.html http://lists.oasis-open.org/archives/xacml/200910/msg00061.html Carry-over issues: #23 Updated Multiple Profile Wording http://lists.oasis-open.org/archives/xacml/200910/msg00020.html DEFERRED as ongoing discussion
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