Questions about XDI GET and typing

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

Nat,

Hope you are getting better. Your questions are very good ones, each with
broad implications. Andy is working on some of the answers in his next
version of the presentation that we'll be going over on tonight's (US time -
tomorrow morning Japan time) call.

See some very preliminary answers inline below, marked ###.

=Drummond 

-----Original Message-----
From: Sakimura, Nat [mailto:n-sakimura@nri.co.jp] 
Sent: Tuesday, January 25, 2005 8:12 PM
To: andy.dale@xdi.org; xdi@lists.oasis-open.org
Subject: RE: [xdi] Groups - Draft XDI powerpoint v0.1
(XDI-Universal-Graph-Primer-v1.ppt) uploaded

This is very good. I wish I could attend the meeting: I was very sick
last week. I have only browsed it lightly and will go over in more details
later, but this is the question that I had for couple of weeks for this
approach and I think it will  assist me understanding this presentation more
fully: 

What does the operation GET on the followings return? 
(Assume that there is no permission control involved.)

### First, I assume you mean an "XDI GET" (vs. an HTTP GET). Also, "Assuming
no permission control involved" is a pretty big assumption. But following
that assumption, here would be my answers:

xri://=andy/

### An XDI GET would return the XDI document designated by the registrant of
"=andy" as his/her public XDI document, i.e., the set of XDI resources that
"=andy" makes publicly available.

xri://=andy/(+email)

### Same as above, except reduced in scope to the XDI document designated to
be returned by "=andy" if there is a public request for his/her XDI data of
Type "+email".

xri://=andy/(+email)/work

### Same as above, except reduced in scope to an instance of Type "+email"
that Andy has designate as "work".

Also, where and how is the "type" diffined? Who does that? 

### The XDI dictionary service that =andy chooses to use (which if =andy is
using a third-party i-broker, may be the default XDI dictionary service used
by that i-broker.)

What about the words like "work"? 

### Stellar question. "work" by itself is entirely relative, and thus not a
good choice for cross-domain data matching. "+work" would be better. IMHO,
choosing "+email*(+work)" as the Type and then "$default" as the Instance
would be the best choice, because that way the XDI dictionary service could
define an expected (but not required) range of subtypes for "+email". That
will make it much easier for members of the dictionary community to
establish equivalence at the instance level.



> -----Original Message-----
> From: andy.dale@xdi.org [mailto:andy.dale@xdi.org] 
> Sent: Thursday, January 20, 2005 9:53 AM
> To: xdi@lists.oasis-open.org
> Subject: [xdi] Groups - Draft XDI powerpoint v0.1 
> (XDI-Universal-Graph-Primer-v1.ppt) uploaded
> 
> Here is the powerpoint for review at the TC call today. I 
> apologize for the late posting.
> 
>  -- Mr Andy Dale
> 
> The document named Draft XDI powerpoint v0.1
> (XDI-Universal-Graph-Primer-v1.ppt) has been submitted by Mr 
> Andy Dale to the OASIS XRI Data Interchange (XDI) TC document 
> repository.
> 
> Document Description:
> First attempt at capturing and formalizing the XDI graph notation
> 
> Download Document:  
> http://www.oasis-open.org/apps/org/workgroup/xdi/download.php/
> 11112/XDI-Universal-Graph-Primer-v1.ppt
> 
> View Document Details:
> http://www.oasis-open.org/apps/org/workgroup/xdi/document.php?
> document_id=11112
> 
> 
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