Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!quanta.eng.ohio-state.edu!kaa.eng.ohio-state.edu!rob
From: rob@kaa.eng.ohio-state.edu (Rob Carriere)
Newsgroups: comp.lang.c
Subject: Re: life critical software
Keywords: testing, software, aircraft, Boeing
Message-ID: <1687@quanta.eng.ohio-state.edu>
Date: 5 Feb 89 01:15:13 GMT
References: <286@proton.UUCP> <2184@scolex.sco.COM> <1857@dataio.Data-IO.COM> <9598@nsc.nsc.com> <1859@dataio.Data-IO.COM> <9580@smoke.BRL.MIL>
Sender: news@quanta.eng.ohio-state.edu
Reply-To: rob@kaa.eng.ohio-state.edu (Rob Carriere)
Organization: Ohio State Univ, College of Engineering
Lines: 23

In article <9580@smoke.BRL.MIL> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) 
writes:
>I'm not sure CPT Murphy would agree with you.  Was the problem that
>the connectors were properly wired but plugged into the wrong jacks?
>That is precisely the problem that Murphy analyzed and described a
>fix for (key the connectors so they can't be inserted into the wrong
>jacks).  

I'm not so sure that's applicable here.  There is a rather large
number of cables involved here, after all.  We won't get anywhere by
exchanging the problem of connecting the right connector to the right
jack for the problem of connecting the right connector to the right
cable! 

>By the way, I almost smoked a terminal recently by plugging
>a "modular connector" into the wrong jack (one being used for an
>entirely different purpose than the one near it).

That's OK.  There are quite a few buildings out there where those
nice, safe, ``work in only one way'' electricity sockets have been
wired the wrong way around.  And that's done by ``professionals''!

SR