From: Jean-Christophe Filliatre <filliatr@lri.fr>
To: "Joshua D. Guttman" <guttman@mitre.org>
Cc: oleg@pobox.com, caml-list@inria.fr, Andrej.Bauer@fmf.uni-lj.si
Subject: Re: [Caml-list] Programming with correctness guarantees
Date: Thu, 1 Feb 2007 21:12:01 +0100 [thread overview]
Message-ID: <17858.18833.95585.840472@serveur9-10.lri.fr> (raw)
In-Reply-To: <nha8xfini06.fsf@oolong.mitre.org>
Joshua D. Guttman writes:
> oleg@pobox.com writes:
>
> > I remember reading somewhere that after a division of
> > Siemens applied this technique to a high assurance
> > project, they noted an exhilarating feeling of being
> > able to program without unit tests. The code was correct
> > by construction.
>
> This seems really frightening.
There's a joke around in the formal methods community: ``would you
prefer to get on a plane whose software has been proved correct or
has been tested?''
More seriously, I heard a similar remark from a French company which
formally verified the embedded code of an automatic subway line (using
the B method). They explained that, after the verification had been
completed, the unit phase was not suppressed, but greatly reduced.
--
Jean-Christophe
next prev parent reply other threads:[~2007-02-01 20:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-01 5:04 oleg
2007-02-01 8:45 ` Andrej Bauer
2007-02-01 13:00 ` [Caml-list] " Chris King
2007-02-01 20:39 ` Jean-Christophe Filliatre
2007-02-01 13:07 ` [Caml-list] " Joshua D. Guttman
2007-02-01 20:12 ` Jean-Christophe Filliatre [this message]
2007-02-01 20:35 ` Robert Fischer
2007-02-01 20:57 ` Jean-Christophe Filliatre
2007-02-02 5:47 ` skaller
2007-02-01 20:43 ` Jacques Carette
2007-02-02 0:38 ` Bob Williams
2007-02-02 14:09 ` Jean-Christophe Filliatre
2007-02-03 8:09 ` Tom
2007-02-04 15:47 ` Design-by-contract and Type inference? David MENTRE
2007-02-04 16:04 ` [Caml-list] " Benedikt Grundmann
2007-02-04 16:35 ` Kenn Knowles
2007-02-06 9:29 ` Hendrik Tews
2007-02-06 20:45 ` Oliver Bandel
2007-02-06 21:35 ` Alwyn Goodloe
2007-02-06 21:50 ` Jacques Carette
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