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Date: Mon, 20 Oct 2003 13:53:38 -0400
From: Hyman Rosen <hyrosen@mail.com>
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Subject: Re: += in ada
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Date: 2003-10-20T13:53:38-04:00
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Robert I. Eachus wrote:
> The final conclusion was that, if you used Ada about 30% of the current 
> staff were hopeless.  With C, the number was closer to 5%, in Pascal 
> somewhere in between.  Ada showed more than a 100% cost benefit over 
> using C, and a 350% benfit over assembler, on initial project costs, 
> with Pascal somewhere in the middle.  As for maintenance costs, 
> maintaining C code cost around 50% less than maintaining assembler, and 
> we had no cost data for fixing bugs in Ada code--even after MOD 400 
> Release 3.0 had been in beta test for more than a year, and in general 
> release for six months after that.

Let me see if I understand this correctly. The acceptance criteria
were looser for programmers of what you and I both agree is a more
error-prone language? Those 30% who were hopeless for Ada were also
hopeless for C. That's why there were maintenance problems with the
C code.