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Subject: Minutes: XDI TC Telecon Friday 2012-03-23
- From: Drummond Reed <drummond.reed@xdi.org>
- To: OASIS - XDI TC <xdi@lists.oasis-open.org>
- Date: Fri, 23 Mar 2012 22:01:14 -0700
Following are the minutes of the unofficial telecon of the XDI TC at:
Date: Friday, 24 February 2012 USA
Time: 9:00AM - 10:30AM Pacific Time (16:00-17:30 UTC)
THE ETHERPAD LINK FOR TODAY IS:
ATTENDING
Mike Schwartz
Drummond Reed
Joseph Boyle
Markus Sabadello
GUESTS
Kari Lippert
Cameron Hunt
1) IDTRUST BUDGET PROPOSAL
Drummond
had a call with the OASIS IDTrust member section staff. This resulted
in revisions to the proposal which we need to review:
Drummond said the key revisions needed were:
- Clarification that deployment of the public test servers was a key step towards finishing the XDI 1.0 spec suite.
- Clarification on the breadth of involvement of TC members.
- Setting
a deliverable date of the end of 2012, producing a final report at that
time, and then optionally applying to renew in 2013.
There was a consensus that the proposal was ready to submit.
# DRUMMOND to send email to Dee.
2) OPEN SOURCE PROJECT UPDATES
Mike
reported that the OpenXDI Project implemented binary storage, so that
if a datatype is specified in the value of the data: URI, then it is now
stored in a binary LDAP node.
Mike
also reported that no code change to OxServer or OxGraph is necessary
to support literal contexts. It will result in a change to OxModel. The
nested roots work is still waiting.
Markus
reported that he's been doing some work on XDI Squared, and is next
looking at implementing it on the Freedom Box, as there is a thread on
the VRM mailing list about p2p usage of VRM.
Drummond
said Phil Windley has published a blog post about how KRL (Kinetic
Rules Language) is going to add XDI support, so that KRL will be operate
on a consistent semantic data interchange layer.
This
is very encouraging from both an adoption and engineering standpoint,
as Phil is very well recognized as a technology pioneer.
# MARKUS, MIKE, DRUMMOND to create a page on the XDI TC wiki with a directory of the XDI open source projects.
3) UPDATED XDI GRAPH PATTERN DOCUMENT
Drummond uploaded a new version that solves one additional key issue:
The
key issue was how to semantically distinguish single-valued contexts
from multi-valued contexts. This not only makes it possible to
algorithmically compose XDI addresses, but makes XDI dictionary
construction much easier. Drummond showed examples of both single-valued
and multi-valued contexts, and the initial reaction was positive.
4) NESTED ROOT CONTEXTS
Mike asked about the use cases for nested root contexts. Drummond clarified the constraints:
- Root nodes can only be subcontexts of other root nodes.
- Every local graph still has only one local root node whose XDI address is (). All other root nodes must be nested under this.
The
primary use case is XDI discovery, i.e., the ability to ask one local
graph for metadata about another local graph, e.g., its URI(s). Such
metadata could be considered cached, or it could be fully subscribed,
since it is essentially a remote copy of self-description data.
5) XDI QUERY
Mike
Schwartz and Yuriy Zabrovarnyy sent an email outlining why they don't
believe XML Path & JSON Path are good models on which we should
based XDI Query:
Mike
clarified that having an XDI Path capabiility could be very useful, but
on the client side, not on the server, i.e., it is much more feasible
to implement on a return graph.
It also needs to as efficient as possible on the network.
#
MIKE will post a proposal on the XDI TC wiki and send an email to the
list with a link for discussion. We will make this the focus of next
week's call.
6) NEXT CALL
The next call is next week at the regular time.
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