Abstract XDI data model

["Barnhill, William [USA]" <barnhill_william@bah.com>]

We discussed an interesting thing today. The abstract data model for XDI is viewed as the following models:
[Bill] XDI Data model as a set of XRIs, each of which may be an XRI wrapped URI
[Drummond] XDI Data model as a graph vertices and edges
[Markus] XDI Data model as a collection of subjects, each one of which has a collection of predicates, each one of which has either a literal, or inner graph, or collection of references
 
The open issue is whether these are fundamentally different, in which case we also need to pick one, or whether we are talking about the same thing? 

I am posting this at Joseph's suggestion so we can start a discussion thread on it.

-----Original Message-----
From: Barnhill, William [USA] [mailto:barnhill_william@bah.com] 
Sent: Thursday, July 08, 2010 4:05 PM
To: Joe Johnston
Cc: Drummond Reed; OASIS - XDI TC
Subject: RE: [xdi] Agenda: XDI TC Telecon Thursday 1-2PM PT 2010-07-08

Thanks Joe.

I am having technical difficulties with the conference number in that it won't accept the pin I have. We may either have to do this strictly over Idearpad, or cancel and pick up again next week.

Bill
 

-----Original Message-----
From: Joe Johnston [mailto:joejohnston10@gmail.com]
Sent: Thursday, July 08, 2010 4:02 PM
To: Barnhill, William [USA]
Cc: Drummond Reed; OASIS - XDI TC
Subject: Re: [xdi] Agenda: XDI TC Telecon Thursday 1-2PM PT 2010-07-08

Unfortunately, I'm in a meeting that is running long.  Not sure if I'll be able to make the TC call today.

I plan on adding some app examples to
http://wiki.oasis-open.org/xdi/PdxExampleApps within the next week.
I'm mostly focused on social networking use cases at the moment.
Drummond and I had talked about using PdxExampleApps page as an index linking to each example app as a separate wiki page.  Let me know if you'd like to do something different.

Cheers,
Joe


--------------------------------------------------------------------------------
Joe Johnston

http://www.socialhive.org (co)
http://www.openactionnetwork.org (project)
415.601.3981 (m)  |  @simple10  |  jedjohn (skype) facebook.com/simple10  |  linkedin.com/in/simple10
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On Thu, Jul 8, 2010 at 12:28 PM, Barnhill, William [USA] <barnhill_william@bah.com> wrote:
> I've been swamped, so am just sending out the agenda now. I have not 
> completed my action item yet, so am proposing we discuss the items we 
> weren't able to get to last call. Agenda below
>
>
>
> Following is the agenda for the unofficial telecon of the XDI TC at:
>
>
> Date:  Thursday, 08  July 2010 USA
> Time:  1:00PM - 2:00PM Pacific Time (21:00-22:00 UTC)
>
> PLEASE DIAL ONE OF THE FOLLOWING NUMBERS:
>
> 1) Skype Number: +9900827047990866
> (this will connect you directly to the conference room) {Bill is not 
> able to join Skype chat from current work location}
>
> 2) US/Canada Toll Number: +1-201-793-9022  7990866#
>
> 3) International Toll Number (follow this with the Conference Room Number:
> 7990866#)
> Austria (0820 401 15470)
> Belgium (0703 57 134)
> France (0826 109 071)
> Germany (0180 500 9527)
> Ireland (0818 270 968)
> Spain (902 885 791)
> Switzerland (0848 560 397)
> United Kingdom/Northern Ireland (0870 0990 931)
>
>
> AGENDA
>
>
>
> NOTE: THE IDEARPAD LINK FOR TODAY IS:
>
>
>
>      http://xdi.idearpad.org/4 <http://xdi.idearpad.org/4>
>
> The Idearpad is set up.
>
> The password is:
>
>      turtle
>
> Please try to preface each of your comments with your name so the transcription into the minutes is easier.
> (Note: the link to last week is http://xdi.idearpad.org/3 - password 
> was "turtle".)
>
> 1) LINK CONTRACTS
>
> First, Markus raised the following questions on the list several weeks ago:
>
>      http://lists.oasis-open.org/archives/xdi/201001/msg00010.html
>
> - If link contracts are enabled at an XDI endpoint and no link contracts exists, what is the "default" behavior? Allow nothing? Allow only $get?
> - Can an XDI endpoint have a special notion of the XDI endpoint "belonging" to a user?
> - Is yes, does that user automatically have "full rights" to the XDI endpoint outside of normal link contract evaluation?
> - As an alternative to signing XDI messages with a key, can an XDI message contain a user's password for authentication?
>
> Second, Markus posed another excellent set of questions this week around link contract processing:
>
>      http://lists.oasis-open.org/archives/xdi/201006/msg00048.html
>
> We need to discuss these as well.
>
>
> 2) PDX EXAMPLE APPS WIKI PAGE
>
> This page was posted at Joe Johnston's request:
>
>      http://wiki.oasis-open.org/xdi/PdxExampleApps
>
> We'll talk about what we plan to do with it.
>
>
> 3) QUESTIONS AROUND $IS SEMANTICS
>
> We did not close week before last week 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 $is.
>
>      http://lists.oasis-open.org/archives/xdi/201006/msg00036.html
>
> 4) COMPATIBILITY WITH COOL URIS
>
> Continue previous discussion about the use of standard RDF URIs in XDI:
>
>  http://lists.oasis-open.org/archives/xdi/201006/msg00023.html
>
> 5) XDI ACCESS CONTROL QUESTIONS
>
> Markus sent a proposal for how OAuth access tokens could be used with XDI:
>
>  http://lists.oasis-open.org/archives/xdi/201006/msg00021.html
>
> Review and see how TC members feel about this approach.
>
> 6) PDX EXAMPLE DOCUMENT
>
> Continue reviewing the list of questions about
>
>  http://wiki.oasis-open.org/xdi/PdxExample
>
> These included:
>
> -$is
>
> -relationship btw PDX and FOAF
>
> -associativity
>
> -"complex predicate"
>
> -usage of "relative" ref e.g. (/+postal+address)
>
> -"how much" goes in the subject and "how much" in the predicate...
>
> -$ as a suffix
>
> 7)  XDI JSON SCHEMA
>
> Check to see if Markus or others have reviewed Bill's schema:
>
>  http://lists.oasis-open.org/archives/xdi/201006/msg00022.html
>
> Review and discuss next steps.
>
> Update: Currently fixing a couple bugs so that the schema validates against the JSON meta-schema. I've also written a node.js X3J validation service that I'll be committing to github, which is what I am using to validate PDX X3J example.
>
>
> 8) NEW BUSINESS
> XDI Camp - Bill is pursuing funding to go, Drummond is definitely going, who else is going or may be going?
>
> 9) NEXT CALL
>
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