I-D ACTION:draft-girod-urn-res-require-00.txt

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       Title     : Requirements for URN Resolution Systems                 
       Author(s) : L. Girod, K. Sollins
       Filename  : draft-girod-urn-res-require-00.txt
       Pages     : 28
       Date      : 06/13/1996

This paper presents a set of requirements for systems that resolve URNs 
into hints for locating resources.  Hints are a type of metadata that 
provide information about locating a resource, including but not limited to
URLs and pointers to other resolution systems.  The requirements fall into 
three broad areas: usability, security, and evolvability.  With those in 
mind, the paper reviews what we have been able to learn about the NAPTR 
proposal.  The NAPTR proposal has grown out of a set of several different 
URN resolution proposals; it uses the existing DNS infrastructure to store 
and serve resolution information.  To this end they introduce a new kind of
DNS entry called a NAPTR, or Naming Authority PoinTeR.  The review of the 
NAPTR proposal includes our wishlist for extensions and modifications to it
that would add evolutionary paths to the design without sacrificing ease of
implementation.  The paper then presents a sketch of a more extensive URN 
resolution system, presented in order to demonstrate the need for evolution
in any URN resolution proposal.                                            

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