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Subject: Minutes: XRI TC Telecon 8-9AM PT Thursday 2008-09-25
Following are the minutes of the unofficial telecon of the XRI TC at: Date: Thursday, 25 September 2008 USA Time: 8:00AM - 9:00PM Pacific Time ATTENDING John Bradley Markus Sabadello Nick Nicholas Drummond Reed Nat Sakimura Nika Jones Peter Davis Marty Schleiff Les Chasen AGENDA 1) PILIN Nick Nicholas gave us some background on PILIN, a project set up in Australia for persistence infrastructure for the library and e-learning space. https://www.pilin.net.au/ He explained that PILIN's research led them to decide they needed to be able to formulate a policy for identifier persistence that was not bound to any specific identifier or protocol. That's what took them in the direction of abstraction. The relevance of XRI is that it proposes an embodiment of abstract identifier architecture in which the PILIN team is interested. 2) XRI AND OPENID AUTHENTICATION 2.1 We had a short followup to last week's discussion about XRI and the possible OpenID Authentication 2.1 work. The consensus is still that OpenID discovery should be an integral unit that supports all forms of OpenID identifiers. In particular Nat said that XRI should not be factored out due to its strong security features. Also, there was consensus that next version of OpenID should factor out discovery into a separate spec. # DRUMMOND to pass that feedback on to David Recordon. 3) XRDS DISCOVERY UPDATE We had a short discussion about Eran Hammer-Lahav's blog post: http://www.hueniverse.com/hueniverse/2008/09/discovery-and-h.html There was consensus that the discovery problem highlighted there is in fact only a problem when concrete http(s): URIs are used to identify an abstract resource. When XRIs are used to identify the abstract resource, it does not violate Web architecture to request the XRDS descriptor directly over HTTP(S) using an Accept header asking for an XRDS document. This is explained in more detail in the content on our Abstract Identifier Architecture page (see below). 4) W3C TAG DISCUSSION/ABSTRACT IDENTIFIER ARCHITECTURE PAGE We reviewed the new content posted last weekend to: http://wiki.oasis-open.org/xri/AbstractIdentifierArchitecture In particular we discussed the graphic and the table. The graphic illustrates the fact that the descriptors to which abstract identifiers resolve are themselves concrete resources that can have concrete identifiers, precisely the way XRDS documents have their own URLs today. The diagram makes it clearer to see the relationship between these descriptors, the abstract resources they describe, and the concrete resources that they locate. John suggested that the next step was to take this graphic and illustrate specifically how it applies to XRI, and what they corresponding identifiers at the http(s): URI level will look like. Nick pointed out that the DOI descriptor identifier needed parameters to actually address the metadata. # DRUMMOND to fix. (DONE) 5) NEXT MEETING John and Drummond will be at the OASIS Open Standards Forum in London next week, so Peter will handle the agenda and minutes (John and Drummond may or may not be able to join the call).
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