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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,21960280f1d61e84 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!wns13feed!worldnet.att.net!attbi_s72.POSTED!53ab2750!not-for-mail From: "Jeffrey R. Carter" User-Agent: Thunderbird 1.5.0.8 (Windows/20061025) MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: How come Ada isn't more popular? References: <1169531612.200010.153120@38g2000cwa.googlegroups.com> <20070123211651.c0d43695.tero.koskinen@iki.fi> <87zm89tpk7.fsf@ludovic-brenta.org> <4q4pqgmdwo.fsf@hod.lan.m-e-leypold.de> <1169719988.972296.121430@a75g2000cwd.googlegroups.com> <4iauh.1157694$084.1040745@attbi_s22> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: NNTP-Posting-Host: 12.201.97.213 X-Complaints-To: abuse@mchsi.com X-Trace: attbi_s72 1169842921 12.201.97.213 (Fri, 26 Jan 2007 20:22:01 GMT) NNTP-Posting-Date: Fri, 26 Jan 2007 20:22:01 GMT Organization: AT&T ASP.att.net Date: Fri, 26 Jan 2007 20:22:02 GMT Xref: g2news2.google.com comp.lang.ada:8612 Date: 2007-01-26T20:22:02+00:00 List-Id: Markus E Leypold wrote: > > I'm glad you take this with a bit of humor. But I would like to > emphasize once again that -- not only in the game Ada vs. C, but > most/every other programming language / development paradigm advocacy > -- I'm missing hard data. Hard data are hard to come by. Few organizations have the resources or the inclination to do such studies. Where we do have hard data (that I know of) are 2 studies, 1 by Rational available at adaic.org, and the other by P&W, posted here some years ago by Condic; McCormick's results; results published by Praxis on the C-130J project; and a controlled study at the US Military Academy comparing Ada and Pascal as 1st-course languages published in /Ada Letters/. The 1st 2 both showed that Ada, compared to C, offered a factor of 2 improvement in cost of reaching deployment, a factor of 4 improvement in post-deployment errors, and a factor of 10 improvement in cost of correcting a post-deployment error. The 3rd we've discussed adequately here, I think. The 4th showed a factor of 10 improvement in post-deployment errors compared to C (and a further factor of 10 improvement of SPARK over Ada). The 5th concluded that Ada was a better 1st-course language than Pascal. -- Jeff Carter "People called Romanes, they go the house?" Monty Python's Life of Brian 79