Re: [xri] Clarity around Ref processing behavior.

[Victor Grey <victor@idcommons.org>]

A: 1
B: 2
C: 3

+1 to Drummond's rationale.

=vg

Drummond Reed wrote:
> First, definitions of the six key terms:
>
> * Authority ref: using the XRD:XRD/xrd:Ref element (section 12.1 of  
> ED05).
> * Service ref: using the XRD:XRD/xrd:Service/xrd:Ref element  
> (section 12.2
> of ED05).
> * Breadth: how many Refs may be successfully resolved (not  
> including errors)
> from the SAME XRDS.
> * Depth: how many Refs may be resolved in a chain of multiple Refs  
> where
> each Ref successfully resolves to a new XRDS document.
> * Breadth Limit Attribute: an attribute on the Ref element that  
> would limit
> the Breadth, i.e., how many Refs could be resolved from the same  
> source
> XRDS.
> * Depth Limit Attribute: an attribute on the Ref element that would  
> limit
> the Depth, i.e., how many Refs could be resolved in a Ref chain.
>
> Now, here's how I'd classify the policy choices we have. They fall  
> into
> three dimensions:
>
> DIMENSION A:
> 1) Same policy applies to both authority refs and service refs.
> 2) Different policies apply to authority refs vs. service refs.
>
> DIMENSION B:
> 1) Limited breadth (zero-or-one); limited depth (zero-or-one).
> 2) Limited breadth (zero-or-one); unlimited depth (zero-or-more).
> 3) Unlimited breadth (zero-or-more); limited depth (zero-or-one).
> 4) Unlimited breadth (zero-or-more); unlimited depth (zero-or-more).
>
> DIMENSION C:
> 1) No breadth or depth limit attributes.
> 2) Breadth limit attribute; no depth limit attribute.
> 3) No breadth limit attribute; depth limit attribute.
> 4) Both breadth and depth limit attributes.
>
> My suggestion is that we start by everyone just voting for their  
> choice
> along each dimension, and adding your rationale if you wish. (Andy,  
> Kermit -
> just send your votes/rationale to one of us and we'll forward it to  
> the
> list.)
>
> I'll start. My votes are:
>
> A: 1 (same policies for authority refs and service refs)
> B: 2 (limited breadth, unlimited depth)
> C: 3 (depth limit attribute only)