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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII X-Google-Thread: 103376,2c41845dd8e1b7c4 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-05-13 14:04:40 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!kibo.news.demon.net!news.demon.co.uk!demon!not-for-mail From: Simon Wright Newsgroups: comp.lang.ada Subject: Re: Problem space (Re: Using Ada for device drivers? (Was: the Ada mandate...)) Date: 13 May 2003 22:04:10 +0100 Organization: Pushface Sender: simon@smaug.pushface.org Message-ID: References: <4a4de33a.0305120208.780bc663@posting.google.com> NNTP-Posting-Host: pogner.demon.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: news.demon.co.uk 1052859879 25961 62.49.19.209 (13 May 2003 21:04:39 GMT) X-Complaints-To: abuse@demon.net NNTP-Posting-Date: Tue, 13 May 2003 21:04:39 +0000 (UTC) User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1 Xref: archiver1.google.com comp.lang.ada:37300 Date: 2003-05-13T22:04:10+01:00 List-Id: maa@liacc.up.pt (M�rio Amado Alves) writes: > > >... I told someone working on our (Ada) compiler: "No, in Ada you > > >model the problem space, not the solution space." I then excused > > >myself for a minute to write it on my office whiteboard. (Robert) > > > > I wish that statement will be placed on all major Ada sites, in > > boldface and at the top of their homepages. (Alexandre) > > Astonishingly convergent independent statement: "the rich type > system of Ada lets the problem express itself as source code" (my > paper on Ada-Europe 2003). Can't help feeling that a problem that can be explained by source code is going to be on the small side. And I don't fancy using source code to back up my design to customers. On the other hand, I remember a colleague who claimed that his VDM spec was an excellent foundation for a customer review when annotated with English!