Notes from today's call (Wed. 6/29 US / Thurs 6/30 Japan)

["Drummond Reed" <drummond.reed@cordance.net>]

XDI TC Members and Observers:

Following are the notes from today's XDI TC call for those who were not able
to attend. Key points are marked *, action items #.

ROLL CALL

Drummond
Nat
Bill
Dave
Steve
Andy
Marc
Paul
Les
Ning
Tetsu
Peter

1) CALL TO ORDER
a) Approval of previous minutes
 * 4/27 - 29
 * 5/18 telecon
 * 6/1 telecon

Dave moved, Bill seconded. The motion passed unanimously.

b) Announcements
Drummond was VERY pleased to announce that the XRI and XDI TCs are the first
to get wiki support at OASIS. The XDI TC wiki is at:

	http://wiki.oasis-open.org/xdi

Please send any issues/problems the wiki to Mary McRae, our TC
administrator, by sending them to the XRI TC list (which she monitors). Put
"wiki" in the subject line.

* Nat noticed that there is multi-lingual support, but it appears to be via
different pages.

# Marc to check with Mary McRae about multiple language support (cc Nat).

2) XRI 2.0 STATUS REPORT
Dave and Drummond reported that the Resolution spec is in the middle of its
revision cycle. Errata have been fixed; the addition of the priority
attribute is happening now; and the final step is a revision/expansion of
proxy resolution. The schedule now looks like the OASIS vote will be in
October, with the TC vote in late July and a public review during August.

3) RELAX NG SCHEMA PROPOSAL
Bill Barnhill gave us an excellent presentation on Relax NG and a Relax NG
rendering of the XDI schema
(http://www.oasis-open.org/committees/download.php/13305/XDI-RNC-Brief-V1.pp
t). 
It was eye-opening how simple and compact it is. 

* Bill proposed that we use the Relax NG compact schema as our normative XDI
schema language as we can do automated translations from that to Relax NG
XML format, W3C Schema, and other schema languages. 

* There was consensus that this was the best choice.

4) XDI DATA MODELLING PROPOSAL
In response to an inquiry from MEDSI about XDI-to-relational database
mapping, Andy Dale wrote an extensive proposal that covers not just
the basic structure of XDI dictionary definitions, but also the basic
structure of XDI-to-data source mappings
(http://www.oasis-open.org/committees/download.php/13306/XDI%20Data%20Modeli
ng.pdf). He reviewed this proposal in depth. The following points were made:

* The structure of the XDI dictionary space consisting primarily of $names
(XDI service dictionary entries) is becoming very clear. 

* Vocabulary for referencing language types is already provided by the XDI
Metadata spec
(http://www.oasis-open.org/committees/download.php/11854/xri-metadata-V2.0-c
d-01.pdf), with the $l space.

* Bill suggested that we reference the W3C Schema datatypes as the default
typing space and everyone concurred. (Bill has since posted a $type proposal
at http://lists.oasis-open.org/archives/xdi/200506/msg00016.html and
Drummond responded at
http://lists.oasis-open.org/archives/xdi/200506/msg00017.html.) 

* Andy showed how maps to data sources (stored queries or statements) could
be described in the the graph. This proposal is early and he invited review
and suggestions.

5) UPDATED XDI ADDRESSING PROPOSAL
Drummond posted an email with a proposed changed to the current XDI
Addressing strawman that adds support for data segments of arbitrary depth
(http://lists.oasis-open.org/archives/xdi/200506/msg00014.html). The
addition of a "datapath" or "dataref" element would address a key concern of
several TC members that the current XDI schema forces all XDI XRIs to be
only three segments long.

* Under this proposal, they could be any length, with every slash segment
after the third representing an address "into the data".

* Drummond asks TC members to review it and comment on the list. He will
then update the XDI Addressing strawman after there is consensus.

6) CLOSING AND NEXT MEETING
The next meeting will be at the regular time on Wednesday 13 July
USA/Thursday 14 July Japan.