From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,f039470e8f537101 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-07-21 11:12:31 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed.freenet.de!newsfeed.r-kom.de!fu-berlin.de!uni-berlin.de!adsl-213-200-246-247.cybernet.CH!not-for-mail From: Vinzent Hoefler Newsgroups: comp.lang.ada Subject: Re: Ariane5 FAQ Date: Mon, 21 Jul 2003 20:10:23 +0200 Organization: JeLlyFish software Message-ID: References: <1058799152.775376@master.nyc.kbcfp.com> <1058810510.375902@master.nyc.kbcfp.com> Reply-To: v.hoefler@acm.org NNTP-Posting-Host: adsl-213-200-246-247.cybernet.ch (213.200.246.247) Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: news.uni-berlin.de 1058811149 14917835 213.200.246.247 (16 [175126]) X-Newsreader: Forte Agent 1.8/32.548 Xref: archiver1.google.com comp.lang.ada:40572 Date: 2003-07-21T20:10:23+02:00 List-Id: Hyman Rosen wrote: >Vinzent Hoefler wrote: >> Obviously you are saying there were any reasons. So could you please >> explain what they were? > >The OP said that there was no reason to assume that the software >used in the Ariane 4 would work in the Ariane 5. But the designers >of the Ariane 5 chose to use the hardware and software unchanged, >so they obviously believed that it would work. They might have been *believed* that, yes. But for what reasons? >The OP seems to be saying that just because I can drive my car >from my house to the supermarket, I have no reason to believe >that I can drive my car from my house to the video store. Wrong analogy. They didn't believe that Ariane X would come back from the supermarket at all. They knew it wouldn't. :-) Let me try an analogy: If you take the brake controller software from one car and put it in a different one, what *reason* makes you believe it would work properly? Vinzent.