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From: dewarr@my-dejanews.com
Subject: Re: Fortran or Ada?
Date: 1998/10/05
Message-ID: <6vbhmp$696$1@nnrp1.dejanews.com>#1/1
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References: <3617AA49.340A5899@icon.fi> <6v9s4t$egn$1@ys.ifremer.fr>
 <3618dc33.0@news.passport.ca> <6vavn6$gra@sjx-ixn4.ix.netcom.com>
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Date: 1998-10-05T00:00:00+00:00
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In article <6vavn6$gra@sjx-ixn4.ix.netcom.com>,
  Richard D Riehle <laoxhai@ix.netcom.com> wrote:
> In article <3618dc33.0@news.passport.ca>,
> 	"Ian St. John" <istjohn@high-sense.com> wrote:
>
> >The software was *correct* for the mission it was designed for ( Arianne
> >4 ). You cannot expect software re-use without evaluation of the
> >interface/inputs.
>
> Software reuse, particularly application-specific software reuse, is full of
> risks.  It is much like giving a pill prescribed by a physician for one
> person to some other person whose body chemistry is intolerant of that same
> medication.  The pill may be benign for one set of circumstances and deadly
> for another.
>
> When a physician is guilty of an error in phamacological "reuse" we call
> it malpractice.  Arianne V was a clear case of software malpractice.  The
> engineers used an otherwise benign software module for a system that was
> intolerant of it.  The doctor is required to ask, "Are you allergic to
> any medications?"  No one seems to have asked an analogous question when
> designing Arianne V.

Actually I don't think that's the right analogy, the reuse here was more like
a doctor looking at a patient and saying: "well this guy looks like Mr. Smith
in room 4, so give him the same medicine"

:-)

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