Re: [xdi] Minutes: XDI TC Telecon Thursday 1-2:00PM PT 2010-11-11

["Giovanni Bartolomeo" <giovanni.bartolomeo@uniroma2.it>]

In order to speedly proceed toward closing some issues:

Def. Quota "Drummond Reed" <drummond.reed@xdi.org>:

>
> 3) GRAPH MODELS OF BASIC XDI PATTERNS
>
> Drummond showed a small set of XDI graphs illustrating basic patterns using
> the new graph notation. Giovanni had some specific input regarding the
> notation and illustrations which Drummond will incoporate and try to post
> before the next call.
>
>

During the call we discussed two alternatives for identifying  
different personas, one is the currently adopted in PDX

http://wiki.oasis-open.org/xdi/PdxExample#Pattern.3ASubjectSuperset.28PersonaContext.29

and the second is the one I proposed here:

http://wiki.oasis-open.org/xdi/XdiOne/AddressingAndGraphModel#A.24has.24aforqualifyingcontexts

my problem with the first option is that it causes semantic conflicts  
with the mereological interpretation of structured identifier (see  
hereafter reported excerpt from minutes):

> XDI adds a second feature to RDF, which is the ability of XRIs to  
> express structured identifiers reflecting the merelogical structure  
> of the graph, i.e., aggregation.

that's why I'm in favour of the second one. However, I've understood  
that the first pattern has been introduced for some issues related to  
the XRI resolution process - which I'm a bit less familiar with. Could  
you maybe guys provide some more details on this issue?

Thank you,
Best Regards,

Giovanni



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