# Re: URN functional spec

P. Desjardins (Desjardins@citix400.doc.ca)
9 Feb 94 16:52 +0500

- Messages sorted by: [ date ][ thread ][ subject ][ author ]
- Next message: Dave Brennan: "Re: URN functional spec"
- Previous message: Tim Berners-Lee: "Re: URN functional spec"
- Maybe in reply to: Karen R. Sollins: "URN functional spec"
- Next in thread: Rob Raisch, The Internet Company: "Re: URN functional spec"
- Reply: Rob Raisch, The Internet Company: "Re: URN functional spec"

    Date:  9 Feb 94 16:52 +0500

    From: "P. Desjardins" <Desjardins@citix400.doc.ca>

    To: <sollins@zippy.lcs.mit.edu>

    Message-Id: <1310*Desjardins@citix400.doc.ca>

    Subject: Re: URN functional spec

Here are my comments on the document "Specification of Uniform Resource
Names", DRAFT, Feb. 8, 1994

On sameness...

I just need to validate my interpretation of the statement describing this
functional requirement...
- sameness of resource names (URNs) will imply "sameness" of the
resources (is that concept defined anywhere?)
- sameness verification involves a string (URN representation)
equality test -- i.e. URN resolution into an URL should not be
required or rather IS not required

On scalability...

In the "...design decisions..." section, bullet #2, you say: "Scalability
implies that a scheme for devising names may be scalable both at its
terminators as well as within the structure". Am I correct in assuming that
when you talk about terminators and structure you are refering to the name
space resulting from a given name generation scheme?

Bullets #2 and #3 of that same section seem to say roughly the same thing.

On resolution...

In the statement for this functional requirement, you say: "...To be more
specific, for URNs that have corresponding URLs,...". To me this leaves
room for URNs that have no corresponding URLs; is that the case?

Further, bullet #4 in the "design decisions" section it is said that "Naming
authorities should guarantee that somewhere, somehow, there is a mapping (or
the potential for a mapping) to one or more URLs". I do not quite understand
the implications of having to guarantee the "potential for a mapping". All
this feels like an upgraded requirement...

Best regards!
Pierre

==================
---
Pierre Desjardins | Desjardins@citi.doc.CA
CITI-Industry Canada | Center for Information Technology Innovation
1575 Chomedey blvd |
Laval, Quebec | +1 (514) 973 5820 (voice)
Canada H7V 2X2 | +1 (514) 973 5757 (facsimile)
---

- Next message: Dave Brennan: "Re: URN functional spec"
- Previous message: Tim Berners-Lee: "Re: URN functional spec"
- Maybe in reply to: Karen R. Sollins: "URN functional spec"
- Next in thread: Rob Raisch, The Internet Company: "Re: URN functional spec"
- Reply: Rob Raisch, The Internet Company: "Re: URN functional spec"