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From: Hyman Rosen <hyrosen@mail.com>
Subject: Re: Boeing and Dreamliner
Date: Fri, 27 Jun 2003 12:31:52 -0400
Date: 2003-06-27T12:31:52-04:00	[thread overview]
Message-ID: <1056731513.272294@master.nyc.kbcfp.com> (raw)
In-Reply-To: <3EFC6FC2.B96DAEA4@adaworks.com>

Richard Riehle wrote:
> The Ada code that caused a problem in Ariane 5 was perfectly
> good code reused from Ariane 4.

It was not perfectly good code. It contained an implementation
shortcut that was specific to the possible trajectories of the
Ariane 4, but the code containing this shortcut had no comment
as to why this was OK, nor was this documented in the description
of the SRI software.

While people here are focussed on the fact that the trajectory
specs were not made part of the specs of the Ariane 5 SRI, the
actual problem was that the Ariane 4 SRI programmers did not
indicate that the trajectory specs for the Ariane 4 actually
impacted the implementation of the SRI code.




  reply	other threads:[~2003-06-27 16:31 UTC|newest]

Thread overview: 130+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-20  3:18 Boeing and Dreamliner Robert Love
2003-06-20 10:29 ` Larry Kilgallen
2003-06-21  2:20   ` Mark A. Biggar
2003-06-23 10:45     ` Robert Kaiser
2003-06-23 11:43       ` Larry Kilgallen
2003-06-23 12:21         ` Martin Dowie
2003-06-23 12:23           ` Larry Kilgallen
2003-06-23 13:02             ` Martin Dowie
2003-06-23 13:02         ` Robert Kaiser
2003-06-20 14:44 ` Matt Brenneke
2003-06-20 17:23   ` Wojtek Narczynski
2003-06-21  4:28     ` rleif
2003-06-22  3:56       ` Hyman Rosen
2003-06-22  9:15         ` Preben Randhol
2003-06-23 18:00           ` Mike Silva
2003-06-22 11:51         ` Larry Kilgallen
2003-06-22 13:37           ` Marin David Condic
2003-06-22 15:06             ` James Rogers
2003-06-22 15:52               ` Dmitry A. Kazakov
2003-06-22 18:18                 ` Tino Goertemoeller
2003-06-23  3:26               ` John R. Strohm
2003-06-23  5:54                 ` Robert I. Eachus
2003-06-23 10:12                   ` Understanding and Teaching: Who may teach Ada? Georg Bauhaus
2003-06-24  1:34                     ` Robert I. Eachus
2003-06-24 12:13                       ` Georg Bauhaus
2003-06-25  2:59                     ` John R. Strohm
2003-06-25  4:44                       ` Wesley Groleau
2003-06-25  5:55                         ` Anders Wirzenius
2003-06-25 14:03                       ` Georg Bauhaus
2003-06-23 21:08                   ` Boeing and Dreamliner Alexander Kopilovitch
2003-06-24  3:16                     ` Robert I. Eachus
2003-06-23 15:40                 ` Wesley Groleau
2003-06-23  5:04               ` rleif
2003-06-22 18:07           ` Frank J. Lhota
2003-06-23  9:32           ` AG
2003-06-23 11:12             ` Larry Kilgallen
2003-06-27 16:30             ` Richard Riehle
2003-06-22 15:10         ` Vinzent Hoefler
2003-06-22 18:22         ` Robert I. Eachus
2003-06-23 18:24           ` Mike Silva
2003-06-24  2:13           ` Alexander Kopilovitch
2003-06-24  2:35             ` Hyman Rosen
2003-06-24  5:22               ` Mike Silva
2003-06-24  6:14                 ` Hyman Rosen
2003-06-24  6:38                   ` tmoran
2003-06-24 13:08                     ` Hyman Rosen
2003-06-24 17:59                       ` tmoran
2003-06-24 18:01                       ` Mike Silva
2003-06-25 11:50                         ` Marin David Condic
2003-06-24 10:56                   ` Preben Randhol
2003-06-24 13:04                     ` Hyman Rosen
2003-06-24 20:54                   ` Pascal Obry
2003-06-24 12:06                 ` Marin David Condic
2003-06-24 13:12                   ` Hyman Rosen
2003-06-24 14:20                     ` Larry Kilgallen
2003-06-24 14:33                     ` Vinzent Hoefler
2003-06-24 20:37                     ` Alexander Kopilovitch
2003-06-25 11:58                     ` Marin David Condic
2003-06-24  7:10               ` Robert I. Eachus
2003-06-24  7:35                 ` Hyman Rosen
2003-06-24 17:29                   ` Robert I. Eachus
2003-06-27 17:15                     ` Richard Riehle
2003-06-27 17:31                       ` Warren W. Gay VE3WWG
2003-06-28  1:27                         ` Wesley Groleau
2003-06-28  6:32                           ` Robert I. Eachus
2003-06-27 17:38                       ` Preben Randhol
2003-06-28  2:18                       ` Alexander Kopilovitch
2003-06-24 16:35                 ` Warren W. Gay VE3WWG
2003-06-24 10:48               ` Preben Randhol
2003-06-24 13:16                 ` Hyman Rosen
2003-06-24 14:49                   ` Preben Randhol
2003-06-24 22:48                   ` Wesley Groleau
2003-06-25  0:41                     ` Hyman Rosen
2003-06-25 10:28                       ` Dmitry A. Kazakov
2003-06-25 21:15                         ` Robert I. Eachus
2003-06-26  2:30                           ` Alexander Kopilovitch
2003-06-27 17:19                           ` Richard Riehle
2003-06-25 18:00                       ` Mike Silva
2003-06-24  6:22             ` Robert I. Eachus
2003-06-24 13:21               ` Hyman Rosen
2003-06-24 16:38                 ` 
2003-06-24 18:00                 ` Robert I. Eachus
2003-06-26  2:00               ` Alexander Kopilovitch
2003-06-26 19:12                 ` Robert I. Eachus
2003-06-27  2:21                   ` Alexander Kopilovitch
     [not found]         ` <ts6hs-vk4.ln1@beastie.ix.netcom.com>
2003-06-22 18:59           ` Simon Wright
2003-06-23 18:20         ` Pascal Obry
2003-06-25  8:08         ` Thierry Lelegard
2003-06-27 16:24         ` Richard Riehle
2003-06-27 16:31           ` Hyman Rosen [this message]
2003-06-27 18:08             ` Robert I. Eachus
2003-06-27 19:00               ` Hyman Rosen
2003-06-28  0:33             ` Alexander Kopilovitch
2003-06-29  6:54               ` Hyman Rosen
2003-06-29  8:30                 ` AG
2003-06-29 16:06                 ` Chad R. Meiners
2003-06-29 20:20                   ` Hyman Rosen
2003-06-30 13:50                     ` Alexander Kopilovitch
     [not found]                     ` <t9i7t-0i3.ln1@beastie.ix.netcom.com>
2003-07-01 11:55                       ` Marin David Condic
2003-07-02 15:02                         ` rleif
2003-07-03  7:38                       ` Robert I. Eachus
2003-06-29 16:56                 ` Alexander Kopilovitch
2003-06-29 20:22                   ` Hyman Rosen
2003-06-29 21:09                     ` Larry Kilgallen
2003-06-29 21:19                       ` Hyman Rosen
2003-06-29 21:31                         ` Larry Kilgallen
2003-06-29 21:39                           ` Hyman Rosen
2003-06-30  0:07                             ` Berend de Boer
2003-06-29 18:26                 ` Richard Riehle
2003-06-29 20:45                   ` Hyman Rosen
2003-06-30 15:55                     ` Warren W. Gay VE3WWG
2003-07-04  0:21                       ` Dave Thompson
2003-07-04 16:42                         ` Warren W. Gay VE3WWG
2003-07-01  1:08                     ` Alexander Kopilovitch
2003-07-03 16:43                       ` Warren W. Gay VE3WWG
2003-07-01  1:14                     ` Richard Riehle
2003-07-01  5:31                       ` Hyman Rosen
2003-07-01  7:30                         ` Dmitry A. Kazakov
2003-07-01 12:57                           ` John R. Strohm
2003-07-04  3:56                             ` Wesley Groleau
2003-07-04  5:05                               ` Robert I. Eachus
2003-06-21 12:55   ` Pascal Obry
2003-06-20 19:59 ` Jeffrey Carter
2003-06-20 22:40   ` Mark Lorenzen
2003-06-20 21:21     ` Jeffrey Carter
2003-06-21  4:28     ` rleif
2003-06-21  8:05     ` Preben Randhol
2003-06-21 10:32       ` Bobby D. Bryant
2003-06-21 10:44         ` Preben Randhol
2003-06-23 16:57           ` Warren W. Gay VE3WWG
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