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Subject: Re: [xdi] Adding a second XDI TC weekly telecon on implementation -10AM PT Fridays
Mike, I saw a new invitation from you for noon Pacific time on Fridays. Is that the new time that works for everyone? =Drummond On Mon, Jan 24, 2011 at 7:54 AM, Barnhill, William [USA] <barnhill_william@bah.com> wrote: > I understand. Is there a time in the afternoon (Pacific time) where you and the others are available? �Unfortunately there's no way I can dial into a meeting before noon Pacific time. > > -Bill > ________________________________________ > From: Michael Schwartz [mike@gluu.org] > Sent: Monday, January 24, 2011 10:23 AM > To: Barnhill, William [USA] > Cc: Drummond Reed; OASIS - XDI TC > Subject: RE: [xdi] Adding a second XDI TC weekly telecon on implementation - 10AM PT Fridays > > I'm not available at that time. > > - Mike > > > On Mon, 24 Jan 2011, Barnhill, William [USA] wrote: > >> >> Can we please have this 2nd call later in the day? Ideally, 2pm Pacific Time? �This allows those of us who are not able to call in from work to attend. >> >> -Bill >> ________________________________________ >> From: drummond.reed@gmail.com [drummond.reed@gmail.com] On Behalf Of Drummond Reed [[email protected]] >> Sent: Monday, January 24, 2011 12:36 AM >> To: OASIS - XDI TC >> Subject: [xdi] Adding a second XDI TC weekly telecon on implementation - 10AM PT Fridays >> >> XDI TC Members and Observers: >> >> This is just to make sure that all XDI TC members note that in the >> last meeting, per the minutes below, we decided to add a second weekly >> telecon devoted exclusively to implementation questions/issues. >> >> This call will be at 10AM Pacific Time on Fridays, and will be hosted >> by Gluu, courtesy of Mike Schwartz. Mike will send further call-in >> details to the list. >> >> Although this call, like our standing weekly telecon at 1PM PT on >> Thursdays, is unofficial (meaning voluntary and not required to >> maintain active status), we invite everyone interested in >> implementation issues to attend. >> >> Adding this second call will give us more time to spend on the first >> call focusing on issues of semantics and related subjects that we need >> to close to proceed with the 1.0 specifications. >> >> =Drummond >> >> ---------- Forwarded message ---------- >> From: Drummond Reed <drummond.reed@xdi.org> >> Date: Thu, Jan 20, 2011 at 7:00 PM >> Subject: Minutes: XDI TC Telecon Thursday 1-2:30PM PT 2011-01-20 >> To: OASIS - XDI TC <xdi@lists.oasis-open.org> >> >> >> Following are the minutes of the unofficial telecon of the XDI TC at: >> >> Date: �Thursday, 20 January 2011 USA >> Time: �1:00PM - 2:30PM Pacific Time (21:00-22:30 UTC) >> >> ATTENDING >> >> Markus Sabadello >> Giovanni Bartolomeo >> Drummond Reed >> Michael Schwartz >> Joseph Boyle >> >> GUEST >> Jay Glasgow >> >> >> THE GOTOMEETING FOR TODAY IS: >> � �https://www2.gotomeeting.com/join/969244355 >> >> THE IDEARPAD LINK FOR TODAY IS: >> � �http://xdi.idearpad.org/19 >> >> >> 1) REVIEW GIOVANNI BARTOLOMEO'S PDF NOTES ON THE GLOBAL GRAPH >> >> We discussed Giovanni's document at: >> >> �http://www.oasis-open.org/committees/download.php/40757/notes%20on%20the%20global%20graph.pdf >> >> Giovanni first explained that one purpose of this document is to >> explain the differences in XDI and RDF graphs, and to show where the >> two of them fit together. It starts by showing that relational and >> literal arcs are identical in both; the difference is the contextual >> arcs, which only exist in XDI graphs. >> >> XDI synonyms are established by having multiple contextual arcs >> pointing to the same node. This is illustrated in the third graph, >> where the final node is identified by both a single arc from the root >> and from another arc from a child of the root. >> >> Giovanni's paper also shows how an XDI graph �can express "same >> identity different context", which we know from a �paper at the W3C >> RDF Workshop is an issue in RDF, because it does not �have an explicit >> facility for expressing context. >> >> Another capability illustrated in the document that is unique to XDI >> graphs is the ability to identify properties in the context of a >> specific subject, and make statements about those properties in that >> context. Giovanni said that this is currently an active topic within >> the Linked Data community. >> >> Another pattern shows how to associate metadata on a property within a >> context by expressing that property as a subcontext. And example is >> the property +friend within the context =abc. For purposes of >> describing this property, this becomes =abc+friend. This has subtle >> differences from the "property on a property" semantics that Drummond >> proposed on our last call before the holiday break. However Drummond >> now agrees that this pattern looks like the best one for the uses >> cases Giovanni's document discusses. >> >> Giovanni proposed that this same approach can be extended to the the >> objects of a relational property, i.e., if you want to talk about the >> object of the XDI statement =abc/+friend/=xyz, that subject can be >> identified in that context by the address =abc+friend=xyz. >> >> Drummond pointed out that the fact that this shows that =xyz can be >> correlated between both contexts -- global (where it is just =xyz), >> and the =abc+friend context, where it is =abc+friend=xyz. He agreed >> with Giovanni that this is not something RDF and Linked Data appears >> to be able to handle today. >> >> # GIOVANNI will upload a revised copy of the document with the one >> erroneous graph fixed and with revisions to the final graphs about >> multi-valued properties. >> >> # DRUMMOND will upload a revised set of graphs showing the patterns on >> which his example dictionary is based. >> >> We will discuss these two documents on next Thursday's call. >> >> >> 2) MIKE SCHWARTZ USE CASES >> >> We did not have time to discuss Part 2 of MIke's use cases for Poken >> friend requests across LDAP boundaries, but see the next item. >> >> >> 3) CALL FREQUENCY >> >> We discussed the potential for a second call focused on >> implementation, so we can make sure that each week we have time for >> calls on both semantics and implementation. Mike volunteered 10AM PT >> on Fridays. >> >> # DRUMMOND will send an email to the list proposing a second telecon >> on implementation at 10AM PT on Fridays. >> >> >> 4) NEXT CALL >> >> The next semantics call will be next week at the regular time. The >> next implementation call will be Friday January 28 at 10AM PT. >> >> >> >> ------------ >> ONGOING ISSUES LIST >> >> Each of these is a candidate for the agenda for future calls. >> >> * PROPOSED CONSTRUCTS/OPERATORS FOR XDI >> >> Discuss the following wiki page originally posted by Giovanni: >> >> http://wiki.oasis-open.org/xdi/XdiNewFoundation >> >> * DICTIONARY STRUCTURE >> >> Mike would like an example of the PDX dictionary as soon as we can do it. >> >> * � EQUIVALENCE SEMANTICS >> >> Close on whether we need an additional $ word that is the equivalent >> of Higgins Personal Data Model (PDM) �semantics � of h:correlation, >> which is not as strong as $is. >> >> � � http://lists.oasis-open.org/archives/xdi/201006/msg00036.html >> >> * COOL URIS >> >> Continue previous discussion about the use of standard RDF URIs in XDI: >> >> http://lists.oasis-open.org/archives/xdi/201006/msg00023.html >> >> --------------------------------------------------------------------- >> To unsubscribe from this mail list, you must leave the OASIS TC that >> generates this mail. �Follow this link to all your TCs in OASIS at: >> https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php >> --------------------------------------------------------------------- >> To unsubscribe from this mail list, you must leave the OASIS TC that >> generates this mail. �Follow this link to all your TCs in OASIS at: >> https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php >> >>
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