RE: [xri] Draft -07 feedback from another Visa person (responses)

340-341 Why 
  are cross references only absolute?  For simplicity 
  or
        conciseness?  Is this 
  just a nomenclature issue?
        i.e. 
  identifiers (relative, etc) satisfy 
  local
        cross-referencing 
  needs?  

  
 

  
 

  
146     Is scheme 
  interoperability with HTTP a requirement or fringe?

  

482-483 Scheme 
  also indicates a connection/transport protocol.  In 
  XRI
        this is lost, which 
  eliminates the possibility of inferring 
  a
        default port.  I would 
  argue that you might want to add 
  some
        language here 
  like:
 "Within a federated namespace, the omission of a port 
  may
 indicate a default port.  This use is at the discretion 
  of
 the governing namespace authority (and implementing 
  applications)."

  
 

  
511 Is xri a 
  valid URI scheme for an xref?

  
 

  
519 Why 
  define global-xri here? I don't see the relevance.

  
 

  
521 First use 
  of "node"?  What does it mean in the context of XRI?

  
 

  
525 Is this 
  to imply that only when the entire XRI is in () that
 it is 
  unresolvable?  I would presume that XRIs can 
  include
 cross-references in path-segments that are also 
  unresolvable.

  
 

  
550-551 I didn't 
  get the meaning of persistent or re-assignable identifiers
 out of 
  this description.

  
 

  
2.2.3.1 Is it 
  allowable to escape unicode characters?  For example, if 
  one
 wanted to express an international XRI in IA5 (ASCII)?  In 
  this
 case, the %AB format described in 2.2.3.1 is insufficient to 
  support
 the expanded character width.

  
 

  
694 Does the 
  lack od idempotency affect semantics or syntax?  I would
 hope it 
  would only be syntax.

  
 

  
2.2.3.3 How 
  about this as an alternative?
     Escape all current 
  escapes (%s).
     Escape all syntactic elements with 
  cross references (parens).
     Escape all 
  parens.

  
 

  
878-879 Why are 
  XRI authorities compared in a case-insensitive manner?

  
 

  
Section 
  3   (I still need to do some reading)

  
 

  
Global:

  
 

  
 Has there 
  been any work on DECODING XRIs?  It's not immediately
 clear from 
  the ABNF that decoding is unambiguous.

  
 

  
 In addition, 
  aside from unresolvable references, is it possible
 to canonicalize 
  XRIs?  This is a highly desireable feature
 (for equivalence, at 
  a minimum).

  
 

  
 An XRI is 
  not a URI (because of the expanded syntax).  But
 is an URI an 
  XRI?  (no, because of different scheme (xri)).
 I think it would 
  be nice to all URIs be valid XRIs.