# Re: Persistent Documents and Locations

Karen R. Sollins (sollins@lcs.mit.edu)
Tue, 22 Aug 1995 11:19:38 -0400

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    Date: Tue, 22 Aug 1995 11:19:38 -0400

    Message-Id: <199508221519.LAA10458@lysithea.lcs.mit.edu>

    From: "Karen R. Sollins" <sollins@lcs.mit.edu>

    To: terry@ora.com

    In-Reply-To: <9508211640.ZM20365@dmg.west.ora.com> (terry@ora.com)

    Subject: Re: Persistent Documents and Locations

Terry,

I completely agree with you. I was trying not to get into the
specifics, but, yes, the reason a URN should never be reused is that
it continues to have it's original "meaning" whether or not there is
an instance of the "named" resource around or not. In fact, for some
resources all I ever want to know about them is their URNs

Karen

From: "Terry Allen" <terry@ora.com>
Date: Mon, 21 Aug 1995 16:40:10 -0700
References: <199508212321.TAA10110@lysithea.lcs.mit.edu>
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I agree with Karen, but would go farther:

>If the object is still
around, in 10 yrs, then the URN for it is still "valid".

The purpose of the URN is to name. It still fulfills that function
when the named thing is gone. For example, we have many titles of
lost (and I mean totally lost) ancient literary works. Those are
still "valid" titles, and indeed are still useful qua titles.
They don't have to be resolvable to have that utility.

<...deleted forwarded msg...>

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