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=-0.8 required=5.0 tests=BAYES_00,INVALID_DATE autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,b19fa62fdce575f9 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 1994-11-23 15:19:07 PST Path: nntp.gmd.de!newsserver.jvnc.net!news.edu.tw!rs540.ncu.edu.tw!news.cc.nctu.edu.tw!nctuccca.edu.tw!howland.reston.ans.net!news.sprintlink.net!sundog.tiac.net!jdi.tiac.net!ichbiah From: ichbiah@jdi.tiac.net (Jean D. Ichbiah) Newsgroups: comp.lang.ada Subject: Re: Why don't large companies use Ada? Date: Wed, 23 Nov 1994 23:19:07 GMT Organization: JDI Technology, Inc. Message-ID: References: <3a6oc5$dkh@nntp1.u.washington.edu> <3ap05e$o15@Starbase.NeoSoft.COM> NNTP-Posting-Host: jdi.tiac.net X-Newsreader: Trumpet for Windows [Version 1.0 Rev B] Date: 1994-11-23T23:19:07+00:00 List-Id: dweller@Starbase.NeoSoft.COM (David Weller) writes: >>Can you seriously talk of rewriting frameworks of classes as encompassing >>as Borland's OWL, Microsoft Foundation classes, or Zinc? Does not make much >>sense to me and goes against the most important lesson we have learnt in >>the past twenty years: Reuse, Reuse, Reuse, ... >Jean, that's not fair to Bill. It has been clear from his anecdotes >that he _is_ concerned with costs across the "life cycle". You may >be pounding the pulpit about reuse, but the reality is that there's >also a cost to reuse software. It's only when we wisely compare the >respective costs (emphasis on "wisely", and I think Bill very much >qualifies) that we can make reasonable decisions. Admittedly the >heuristics for such comparisons are somewhat thin right now, but many >experienced developers (those that have not fossilized into a >particular school of thought) can make a pretty good estimate. I reiterate my disagreement. For the above, I cannot see how it could ever make sense to rewrite. This completely underestimates the fact that a significant body of literature, documentation, books, trainers, examples,..., and other forms of knowhow go with them in each case, which you will never be in a situation to replicate. Jean D. Ichbiah