From: Martin <martin.dowie@btopenworld.com>
Subject: Re: Software Quality in Science
Date: Wed, 10 Feb 2010 05:38:25 -0800 (PST)
Date: 2010-02-10T05:38:25-08:00 [thread overview]
Message-ID: <495939c0-58e7-4362-a8c0-6d4af23c3b12@o3g2000yqb.googlegroups.com> (raw)
In-Reply-To: 87fx59p725.fsf@mid.deneb.enyo.de
On Feb 10, 1:13 pm, Florian Weimer <f...@deneb.enyo.de> wrote:
> * Robert A. Duff:
>
> >>...The net result of changing languages appears
> >> to be that the overall defect density appears to be about the same,
> >> (Hatton 1997). In other words, when a language corrects one
> >> deficiency, it appears to add one of its own."
>
> > That assertion requires evidence, and I don't see it here!
>
> (Hatton 1997) is here: <http://www.leshatton.org/IEEE_Soft_97b.html>
> For Ada, it cites Compton & Withrow, "Improving Productivity: Using
> Metrics to Predict and Control Defects in Ada Software", in "Second
> Annual Oregon Workshop on Software Metrics", Oregon 1990. It then
> concludes that language choice had no impact on fault density
> patterns. Of course, the evidence is only anecdotal.
>
> But the actual cross-language studies I've seen show that most metrics
> one can conceive (such as defect rate, performance, development time,
> even lines of code) vary as much among programmers as among
> programming languages. This is a bit sad because it means that
> language design does not really matter as far as actual results are
> concerned.
>
> Ada subsets may be helpful if your goal is to avoid the last
> (relevant) bug. But that requires matching development practices,
> which are in place for only very few code bases. Certainly, these
> practices aren't magically introduced if you just substitute Ada for C
> or Fortran.
What about McCormack (http://www.stsc.hill.af.mil/crossTalk/2000/08/
mccormick.html)?
Or Zeiger (Rational) (http://www.adaic.com/whyada/ada-vs-c/
cada_art.html)?
Both quite old now (but so is Hatton's) and they at least have
something more than anecdotes...
Cheers
-- Martin
next prev parent reply other threads:[~2010-02-10 13:38 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-09 21:20 Software Quality in Science Jerry
2010-02-09 21:51 ` Jerry
2010-02-09 22:00 ` Hibou57 (Yannick Duchêne)
2010-02-10 4:13 ` Thomas Wicklund
2010-02-10 5:24 ` Hibou57 (Yannick Duchêne)
2010-02-09 23:43 ` Robert A Duff
2010-02-10 1:01 ` Georg Bauhaus
2010-02-10 14:34 ` Stephen Leake
2010-02-10 15:09 ` Martin
2010-02-10 16:37 ` Robert A Duff
2010-02-10 17:05 ` Martin
2010-02-10 13:13 ` Florian Weimer
2010-02-10 13:30 ` (see below)
2010-02-10 13:38 ` Martin [this message]
2010-02-15 11:20 ` Colin Paul Gloster
2010-02-15 14:52 ` Maciej Sobczak
2010-02-15 18:48 ` Colin Paul Gloster
2010-02-10 14:29 ` Stephen Leake
2010-02-10 14:38 ` Hyman Rosen
2010-02-10 16:24 ` Robert A Duff
2010-02-15 11:32 ` Colin Paul Gloster
2010-02-15 12:19 ` Georg Bauhaus
2010-02-10 13:55 ` Ludovic Brenta
2010-02-10 14:21 ` Hibou57 (Yannick Duchêne)
2010-02-10 22:52 ` Bob Spooner
2010-02-11 8:29 ` Rick
2010-02-11 22:39 ` Hibou57 (Yannick Duchêne)
2010-02-11 23:10 ` Brian Drummond
2010-02-11 23:21 ` Hibou57 (Yannick Duchêne)
2010-02-11 23:24 ` Hibou57 (Yannick Duchêne)
2010-02-12 0:06 ` Robert A Duff
2010-02-12 0:32 ` Hibou57 (Yannick Duchêne)
2010-02-12 7:37 ` Pascal Obry
2010-02-12 10:58 ` Stephen Leake
2010-02-12 15:02 ` Robert A Duff
2010-02-15 10:49 ` Alex R. Mosteo
2010-02-12 7:37 ` Pascal Obry
2010-02-15 12:18 ` Colin Paul Gloster
2010-02-15 11:08 ` Colin Paul Gloster
2010-02-15 14:43 ` Hibou57 (Yannick Duchêne)
2010-02-15 19:01 ` Colin Paul Gloster
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