To: rtor@ansa.co.uk
In-Reply-To: rtor@ansa.co.uk's message of Wed, 5 Oct 1994 10:07:27 -0700 <94Oct5.100739pdt.2760@golden.parc.xerox.com>
Subject: Re: No "TOP" of the docuverse [Was: URC usage scenarios ]
From: Larry Masinter <masinter@parc.xerox.com>
Message-Id: <94Oct6.235436pdt.2760@golden.parc.xerox.com>
Date: Thu, 6 Oct 1994 23:54:24 PDT
Most discussions about URNs seem to also leave out another important
constraint: that URNs have a longer lifetime than the publisher/host
that originated them. I think it's important that the Name->Address
resolution system allow for the possibility that institutions
disappear as well as split, merge, spin of sub-components.
Systems that are based on looking up the DNS of the 'original
publishing host' will fail because most DNS names disappear or get
reassigned over time.