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Subject: Minutes of Special XRI TC Telecon 1PM PT Wednesday 2007-05-09
Following are the minutes of today's special XRI TC telecon (see announcement message appended below). ATTENDING Marty Schleiff Steve Churchill Peter Davis Drummond Reed Victor Grey Les Chasen * = discussion point # = action item 1) DIRECT CONCATENATION * We reviewed the new wiki page describing this proposed feature of XRI Syntax 2.1. http://wiki.oasis-open.org/xri/XriCd02/DirectConcatenation * Peter suggested that this page could use some more detail in explaining how subsegments are all "integral units" now, i.e., how under the Draft 14 ABNF on http://wiki.oasis-open.org/xri/XriCd02/XriAbnf2dot1, the fundamental unit is "subseg", which is not further parsed. We agreed we need more documentation of this key proposed feature of the ABNF. 2) SOCIAL VULNERABILITY OF =/@ CONCATENATION * Steve summarized the evolution of discussions on this point, which served as a good introduction to the options on the new wiki page: http://wiki.oasis-open.org/xri/XriCd02/EqualsAtSocialVulnerability * Steve broadly characterized the 8 options on this page as: #1: Prevent =/@ concatenation at the syntax level #2: Allow it as the syntax level but don't allow it in resolution #3: Use a special non-standard resolution w/out reference verification #4-#8: Perform standard resolution w/a form of reference verification. * Steve and Drummond prefer at least #2 or higher since the Draft 14 syntax proposal is so clean and elegant an abstract model. * Les feels that option #1 should still be considered if we don't come up with a solution to the social vulnerability issue. * We talked about the proposed "grammatical" difference between a global xref. In short, it is that a global xref like "=drummond" should be interpreted as "THE =drummond", i.e., the same resource referenced by the global XRI independent of the context, while a local xref like "*(=drummond)" or "!(=drummond)" should be intepreted as "A =drummond", i.e., a local resource that uses this identifier but is not necessarily the same resource as identified in an independent global context. Les likes this clear distinction; Marty expressed concerns about it. # DRUMMOND (who understands Marty's concerns) to propose a slight revision to this "grammatical rule" intended to satisfy both Les and Marty. * We discussed option #3 and clarified that it does not perform any type of reference verification; it simply resolves the child subsegment independently of the parent. Steve and Drummond expressed concern that this breaks the standard left-to-right resolution model, and does not actually confirm any form of relationship at all between the two authorities. * We did not have time to discuss options #4-#8 in detail, but in summary form they all perform standard resolution with a type of reference verification. * Option #8 stands out because it proposes a standard algorithm for reference verification, dubbed "cross-resolution", that in practice works very much like CanonicalID verification. It will work for any XRI authority segment containing global subsegments and scales to all sizes of registries and communities. * Peter asked for this cross-resolution model to be documented in greater detail, including sample XRDs, so it would be easier to analyze and discuss. # DRUMMOND (and any other editor who wants to help) to document cross-resolution in greater detail. *********** -----Original Message----- From: Drummond Reed [mailto:drummond.reed@cordance.net] Sent: Monday, May 07, 2007 1:46 PM To: xri@lists.oasis-open.org Subject: [xri] Special XRI TC Telecon 1PM PT Wednesday 2007-05-09 XRI TC Members: As the XRI Syntax editors try to close the last key issues remaining before producing XRI Syntax 2.1, we will be holding a special telecon open to all members of the TC this Wednesday at 1PM Pacific time. This call will be in addition to our normal call on Thursdays at 10AM PT. We will send out an additional email with an agenda and wiki links before the telecon, but we want to invite all TC members to put in on their calendars. We will use the standard TC telecon number (thanks to NeuStar for hosting this): TO ACCESS THE AUDIO CONFERENCE: Dial In Number: 571-434-5750 Conference ID: 5474 =Drummond
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