Re: some questions on the March 94 Masinter&Sollins URN reqs draft spec

Alan Emtage (bajan@bunyip.com)
Wed, 15 Jun 1994 00:11:09 -0400

Message-Id: <9406150411.AA08845@mocha.bunyip.com>
From: bajan@bunyip.com (Alan Emtage)
Date: Wed, 15 Jun 1994 00:11:09 -0400
In-Reply-To: Mike Carifio's message as of Jun 8, 12:10
To: Mike Carifio <carifio@boco.enet.dec.com>, url@boco.enet.dec.com,
Subject: Re: some questions on the March 94 Masinter&Sollins URN reqs draft spec

Hi Mike,
Absent other responses, here's my take on this...

> 2) Suppose a naming authority resolves a URN to have two (or more)
> URLs. Is it implied that each of the resources are an ``equally good''
> resource for this URN? For example URN u1 might map to <url:http://foo.com>
> and <url:ftp://foo.com>, indicating that the user can choose with
> scheme to go with. Am I reading too much into this?

This, in my mind is really a client issue. Assuming the existance of
something looking like what we are currently calling a URC, the
client/user should be able to make a determination of what is "good" for
them. For example, you may have a file as a bitmap and the "same" image
as a color tiff. Now in some cases, the latter would be "best" (fast
link, color display etc). However, at the end of a 9600 baud link and
with a monochrome display the first is probably "best" for you. All we
can hope to do is provide enough information about the attributes
(characteristics) of a resource and have the users and their tools make
up their own minds.

-- 
-Alan

------------------------------------------------------------------------------ Alan Emtage, "The Left in Canada is more gauche Bunyip Information Systems, than sinister" Montreal, CANADA -The Economist

bajan@bunyip.com Voice: +1 (514) 875-8611 Fax: +1 (514) 875-8134