# Re: URN functional spec

Dave Brennan (brennan@hal.com)
Thu, 10 Feb 94 15:08:47 CST

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    From: brennan@hal.com (Dave Brennan)

    Message-Id: <9402102108.AA12840@hysteria.hal.com>

    Subject: Re: URN functional spec

    To: uri@bunyip.com

    Date: Thu, 10 Feb 94 15:08:47 CST

    In-Reply-To: <9402091726.AA04494@ptpc00.cern.ch>; from "Tim Berners-Lee" at Feb 9, 94 6:26 pm

Tim writes:

> ...this means that the delimiters between the naming authority
> specifier and the part allocated by the authority should NOT be
> distinguishable from the hierarchical delimiters within either the
> naming authority specifier or the part allocated by that authority.

So, in other words, the delimiters should be the same, right?
This sounds fine as long it does not adversely affect resolution.
(Although at this point, who can tell?)

> I feel this is a requirement for the good scaling of the URN.

Yes, this is easy to see and agree with (at least to me).

> You ask good scaling of the authorities, you should make sure
> it is provided by the URN in the large.

Definitely. I also think that it's important to _clearly_ distinguish
between what is encouraged and what is required (ie: should vs. must)
in the various specifications. Right now it's not always clear enough.

> nit: You assume that the encoding for presentation for people and for
> transmission will be the same. Reasonable, but an unstated assumption.

Although not necessarily true when we're just dealing with "printable
characters."

    --
    Dave Brennan                                      HaL Computer Systems
    brennan@hal.com                                   Austin, TX, USA

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