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=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fac41,b87849933931bc93 X-Google-Attributes: gidfac41,public X-Google-Thread: 103376,b87849933931bc93 X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,b87849933931bc93 X-Google-Attributes: gidf43e6,public X-Google-Thread: 114809,b87849933931bc93 X-Google-Attributes: gid114809,public X-Google-Thread: 1108a1,b87849933931bc93 X-Google-Attributes: gid1108a1,public X-Google-Thread: 109fba,b87849933931bc93 X-Google-Attributes: gid109fba,public X-Google-Thread: 11cae8,b87849933931bc93 X-Google-Attributes: gid11cae8,public From: tknarr@xmission.com ( Todd Knarr ) Subject: Re: What is wrong with OO ? Date: 1996/12/11 Message-ID: <58lbbo$8kl@news.xmission.com>#1/1 X-Deja-AN: 203435934 references: <32A4659D.347A@shef.ac.uk> <32a5ceba.81462731@news.nstn.ca> <32A885CF.5530@csn.net> <32a98036.46416970@news.nstn.ca> organization: Chaos Central reply-to: tknarr@xmission.com ( Todd Knarr ) newsgroups: comp.lang.c++,comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.lnag.java,comp.object,comp.software-eng Date: 1996-12-11T00:00:00+00:00 List-Id: In <32a98036.46416970@news.nstn.ca>, tbushell@fox.nstn.ns.ca (Tom Bushell) writes: >1. The design/implementation dichotomy that works well in other >engineering disciplines does not map to software. >Think we've got a new thread here - "What's wrong with formal design?" I think the problem with formal design goes right to your point #1, since in most other enginerring disciplines there *isn't* the strong dichotomy between design and implementation. Think about an architect designing a bridge, and how much he has to know about the actual construction methods and materials involved to come up with a design that can be built without falling down. No self-respecting architect or mechanical engineer would, for instance, decide that stone is pretty and would fit well with the landscape but arches and intermediate support pylons wouldn't, so "we'll build a 1000 foot stone bridge as a single span with no arches under it". All too often, though, the "systems analysts" hand me a design document which I'm supposed to implement which is exactly the programming equivalent of that 1000-foot single-span stone bridge. -- Todd Knarr : tknarr@xmission.com | finger for PGP public key | Member, USENET Cabal ***** Unsolicited commercial e-mail proof-read at $50/message ***** Seriously, I don't want to die just yet. I don't care how good-looking they are, I! don't! want! to! die!" -- Megazone ( UF1 )