Minutes: XDI TC Telecon Thursday 1:00-2:00PM PT 2011-05-26

Following are the minutes of the unofficial telecon of the XDI TC at:

Date:  Thursday, 26 May 2011 USA

Time:  1:00PM - 2:00PM Pacific Time (20:00-21:30 UTC)

ATTENDING

Bill Barnhill 

Mike Schwartz 

Markus Sabadello 

Joseph Boyle 

Drummond Reed 

THE GOTOMEETING FOR TODAY IS:

     https://www2.gotomeeting.com/join/969244355

THE IDEARPAD LINK FOR TODAY IS:

     http://xdi.idearpad.org/30

1) UPDATES

We haven't had a call for three weeks, so we started with general updates.

Markus
 has been busy at the European Peace Academy, and has been talking to 
them about XDI and the federated social web. He has been following our 
key developments, however, and plans to get more active once his EPA 
term is done in 3 months.

Bill
 has been talking to Neil, who is planning the upcoming Cloud Symposium 
in London  October 10-13 ,to reserve a space at the event for XDI. Bill 
is proposing an XDI TC contribution to the forum, particularly if he is 
able to get funding to go.

Mike
 said that OpenLDAP is having LDAPCon in Heidelberg. He doesn't think 
he'll be able to go, but wanted to point out that we are getting close 
to being able to talk to the LDAP community about XDI.

Drummond
 gave a brief update about Connect.Me, explaining that they have 
launched a simple Twitter tagging application at tag.connect.me. 

2)  REVISED XDI GRAPH PATTERN DOCUMENT AND CORRESPONDING XDI STATEMENT DOCUMENTS

Scott
 McGrath fixed the PDF uploads, so below are links to the latest 
versions of The XDI Graph Model, XDI  Graph Patterns, and XDI Statements
 for XDI Graph Patterns. 

http://www.oasis-open.org/committees/download.php/42049/xdi-graph-model-2011-05-08.pdf

http://www.oasis-open.org/committees/download.php/42045/xdi-graph-patterns-2011-05-08.pdf

http://www.oasis-open.org/committees/download.php/42047/xdi-statements-for-xdi-graph-patterns-2011-05-08.pdf

Drummond would like to merge those into one document in advance of beginning our work on the specs (see below).

3) OXGRAPH

  http://openxdi.gluu.info/oxGraph/

  

Mike
 said that OpenXDI has implemented the basic operations, i.e., $get, 
$add, $mod, $del. The most complicated is $del, because it can go 
through an entire subgraph. $mod was the easiest since you can only 
update an XDI literal.

The next focus is the server. Mike hopes to have the server out in about two weeks. 

Mike
 gave a demo of OxGraph, and how it worked with the different XDI 
example graphs. After the server is ready, Mike would like to add 
support for showing XDI operations in OxGraph.

Markus
 explained that in his set of XDI utilities, he had two text boxes, one 
for the graph and one for the message being applied to the graph.

Bill
 asked about the status of dictionaries. Drummond said he has done work 
on the basic patterns but that we need to document the core patterns 
just like the others we have done. Bill suggested that in terms of 
content, we should look at the several of the most-used RDF ontologies: 
FOAF and SIOC (pronounced "shock").

4) SPEC DRAFTING

Mike
 asked about how close we are to formal drafting of 1.0 specs. Drummond 
offered the opinion that we are pretty close, at least to the XDI Graph 
Model and XDI Serialization specs, but that the key question is the 
resource to draft the spec docs themselves. There was wide consensus 
that the current TC membership is too busy with implementation and 
business activities to take on major spec drafting activity at this 
time.

Bill feels that the spec must be as modular as we can make it.

With
 regards to how we might get more resources to draft the actual spec 
documents, Drummond offered the view that the core TC members must be 
involved. Mike said he might be able to get some help from Yuriy on the 
OpenXDI project.

We discussed the current breakdown on the XdiOneSpec page:

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

  

We
 agreed that the two most important specs are XDI Messaging and XDI 
Dictionary. Drummond pointed out that those two specs need the Graph 
Model and Serialization.

# ALL fill in requirements for the first four specs on http://wiki.oasis-open.org/xdi/XdiOneSpecs.

4) NEXT CALLS

The
 next call will be next week at the regular time. We also agreed that 
the call two weeks from now will focus on XDI dictionaries, since we 
hope Giovanni can attend that call.

------------

ONGOING ISSUES LIST

Each of these is a candidate for the agenda for future calls.

* TRANSACTIONAL INTEGRITY FOR XDI (added 2011-03-24)

Since 
 versioning, as one example, involves multiple transactions that must 
be  commited as a group, we will need to address transactional 
integrity.  Specifically, we need to define how this will be handled at 
the protocol  level, vs. the implementation level.

* 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