Path: local-4.nntp.ord.giganews.com!Xl.tags.giganews.com!local-2.nntp.ord.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Fri, 17 May 2024 20:55:58 +0000 From: Joe Gwinn Newsgroups: sci.electronics.design Subject: Re: smart people doing stupid things Date: Fri, 17 May 2024 16:55:57 -0400 Message-ID: References: User-Agent: ForteAgent/8.00.32.1272 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 37 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-RBF/G/NeaH9LaVKyQ8ojUdEJatBrofJtEPfE4GrbEaidd4kxadkhJU4qHOrfwFK99zkUgdeVjSEyAIQ!eD2gK+uKa5Jfog+GsPVfKDzKXYf8pTwHvf8dwCtee72j53OpGjTk/R9hpQbty4DDmhYlj5Q= X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Bytes: 2630 On Fri, 17 May 2024 13:14:30 -0700, John Larkin wrote: >On Fri, 17 May 2024 15:36:55 -0400 (EDT), Martin Rid > wrote: > >>John Larkin Wrote in >> message:r >>> https://www.youtube.com/watch?v=5Peima-Uw7wSee graph at 9:50 in.I see this a lot, engineers wanting to do complex stuff because it'samusing to them, when simple common-sense things would work and bedone. >> >>My current project requires iec62304 and it is amusing . >> >>Cheers > >Yikes. What does it cost to buy the standard? Does it reference other >standards? It's 345 Swiss franks (USD 380). Probably cites many things, so you may need a bunch of these expensive standards. It documents the now obsolete waterfall model of software development, at great length, for medical devices. .. I've had to follow this approach (but not this standard), and it didn't go well, because it didn't deal with practical constraints at all. The electronic-design parallel would be a process that requires that a transistor with very specific properties exist and be available. But in the real world, we have to use the transistors that are available, even if they are not perfect - make what you want from what you can get. The solution was to design from the middle out, and when it all settled down, document as if it were developed from the top down. Joe Gwinn