NRI link contract use case (was RE: [xdi] Agenda: XDI TC Telecon Thursday 1-2PM PT 2008-07-10)

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

Tatsuki,

Sorry for the delay in replying to this -- I'm getting ready to go on
vacation and trying to catch up with past mail.

I think that the link contract pattern we discussed last week can work for
an OP-defined contract per your requirements. We should make that an example
use case we document on the wiki.

I'd be happy to help work on this once I am back from sabbatical (six
weeks).

Best,

=Drummond 

> -----Original Message-----
> From: Tatsuki Sakushima [mailto:tatsuki@nri.com]
> Sent: Thursday, July 10, 2008 3:56 PM
> To: Markus Sabadello
> Cc: Drummond Reed; xdi@lists.oasis-open.org; Sakimura, Nat
> Subject: Re: [xdi] Agenda: XDI TC Telecon Thursday 1-2PM PT 2008-07-10
> 
> Hi Markus,
> 
> Thank you for considering the TX use case.
> 
> Probably I should confirm with Nat first, but let me clarify a few
> points in the TX spec.
> 
> 1) In the TX spec, a template means user data(which is a OpenID owner's
> information) handling policy proposal *without signature* from RP.
> We might not have to distinguish a link contract or a template.
> If it is signed, it is a contract. If not, it's a template.
> Let me confirm it with Nat.
> 
> 2) In the TX, a contract proposal comes from RP because it is a data
> usage policy that RP must commit. In the basic pattern the we talked
> about today, OP should define a link contract. We might have to find
> another way to do this in the TX spec side if following the basic
> pattern or consider a different pattern from the basic one in the link
> contract pattern side.
> 
> I think Nat is in Sweden today. I hope he read this and reply soon.
> 
> Tatsuki
> 
> Tatsuki Sakushima
> NRI Pacific - Nomura Research Institute America, Inc.
> TEL:(650)638-7258
> SkypeIn:(650)209-4811
> 
> Markus Sabadello ????????:
> > I think what's missing on the LinkContractPattern page is an example for
> > a "link contract template". Or is that concept deprecated now?
> >
> > I'm asking because I was thinking about how to update my proposal for
> > how link contracts in Nat's OpenID Trusted Data Exchange would look
> like:
> > http://www.oasis-
> open.org/apps/org/workgroup/xdi/document.php?document_id=28380
> >
> > Maybe such a template ("Bob REQUESTS permission to access some
> > attribute") could look like this:
> >
> > $$$contract   <-- this indicates a link contract TEMPLATE, i.e. a
> > request for something -->
> >         $is$a
> >                 $contract
> >         $a$contract
> >                 =!2222  <-- Bob is the one who requests a link contract
> -->
> >         $get
> >                 /
> >                         $$
> >         $add
> >                 /
> >                         $$
> >                                 +y
> >                                 +z
> >         $mod
> >                 /
> >                         $$
> >                                 +x
> >                                 +y
> >                                 +z
> >         $del
> >                 /
> >                         $$
> >                                 +x
> >                                 +y
> >                                 +z
> >
> > Then the answer to that request (i.e. the "instantiated" link contract)
> > with actual permissions given by Alice to Bob would be exactly this:
> > http://wiki.oasis-open.org/xdi/XdiOneIssues/LinkContractPattern#head-
> 7b714236b726216c5aec36b9ceafdcdf7de1961b
> >
> > Markus
> >
> > On Thu, Jul 10, 2008 at 10:04 AM, Drummond Reed
> > <drummond.reed@cordance.net <mailto:drummond.reed@cordance.net>> wrote:
> >
> >     Following is the agenda for the unofficial telecon of the XDI TC at:
> >
> >     Date:  Thursday, 10 July 2008 USA
> >     Time:  1:00PM - 2:00PM Pacific Time
> >
> >     TO ACCESS THE AUDIO CONFERENCE:
> >        Dial In Number: 571-434-5750
> >        Conference ID: 3526
> >
> >
> >     AGENDA
> >
> >     1) STANDING RULE BALLOT
> >
> >     TC Administrator Mary McRae has suggested we have a ballot on the
> >     following
> >     Standing Rule in order to formalize our informal meeting schedule:
> >
> >            "Standing Rule: Does the TC wish to adopt a standing rule to
> >     conduct
> >     regular business only by electronic ballot, without Meetings, with
> the
> >     exception of Meetings called for a special purpose with a minimum of
> 15
> >     calendar days notice?"
> >
> >
> >     2) XDI RDF LINK CONTRACT BASIC PATTERN
> >
> >     Our tech topic for the day is a very core one: confirming the basic
> >     pattern
> >     of XDI link contracts in the XDI RDF model. This has been assigned
> >     Issue #4
> >     on and a proposal written up at:
> >
> >            http://wiki.oasis-
> open.org/xdi/XdiOneIssues/LinkContractPattern
> >
> >
> >     3) SUMMER CALL SCHEDULE
> >
> >     We'll discuss summer vacation schedules and if/how often we want to
> have
> >     calls over July/August.
> >
> >
> >     4) OTHER BUSINESS
> >
> >
> >
> >     --------------------------------------------------------------------
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