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Re: What to do given both SYSTEM and PUBLIC?

From: Dave Peterson <davep@acm.org>
Date: Wed, 19 Feb 1997 15:03:15 -0500
Message-Id: <v01540b03af3109966644@[]>
To: dgd@cs.bu.edu (David Durand), "Steven J. DeRose" <sjd@ebt.com>, w3c-sgml-wg@w3.org
At 11:08 AM -0500 2/19/97, Steven J. DeRose wrote:
>At 12:52 PM 02/18/97 -0800, Joe English wrote:
>>Try to resolve either one.  If that fails, try the other.
>>It doesn't matter which one you try first.

>So two systems that do opposite things are both conforming? That seems very
>ODA-like (I take that as a negative): "your system can do either the logical
>structure, or the layout, or both" -- so immediately you end up with
>non-interoperable yet conforming systems.

One of my cars requires that I select the gear ratio from a limited numberof
choices.  The other one gives me only a small amount of control over what gear
ratio it selects automatically by a built-in algorithm.  If you get a Volvo
960 (and undoubtably many others) you can choose to have absolute control over
the gear ratio selection or to let the built-in algorithm make the selection.
All three possibilities are useful, make for useful product differentiation,
and I for one would be upset if someone felt that they had to mandate which
kind of vehicle I owned.  Yet they are not directly interoperable systems; I
can't count on a user interfacing correctly with one if he or she has developed
his or her inteface for the other.

(Note: this is an analogy, not an exact parallel.  Don't give me grief just
because the analogy can be overextended to the point where there are

Dave Peterson

Received on Wednesday, 19 February 1997 15:04:26 UTC

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