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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID
	autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,897417b380f5731e
X-Google-Attributes: gid103376,public
From: herwin@gmu.edu (Harry Erwin)
Subject: Re: STL, Ada, C++
Date: 2000/05/09
Message-ID: <1ead2of.ov19z41vtwix1N%herwin@gmu.edu>#1/1
X-Deja-AN: 621221221
References: <8eg37k$15n$1@nnrp1.deja.com> <8epkoa$b8b$1@nnrp1.deja.com>
 <E$OcUgAHHIE5Ewfl@quik.freeuk.net> <8eu0ob$7qv$1@nnrp1.deja.com>
 <u4s8dosyz.fsf@infomatch.com> <m3hfcdvsg6.fsf@flash.localdomain>
 <t7zoq4c3ud.fsf@calumny.jyacc.com> <m3d7n0x4nc.fsf@flash.localdomain>
 <t7vh0sbzrz.fsf@calumny.jyacc.com> <391328F0.1221@synquiry.com>
 <t7n1m4bve7.fsf@calumny.jyacc.com> <39133213.64A@Ganymede.com>
 <Pine.BSF.4.21.0005071606250.9268-100000@shell5.ba.best.com>
 <8f50hc$hpo$1@nnrp1.deja.com> <8f5u58$3lu$1@wanadoo.fr>
 <Pine.BSF.4.21.0005080941230.24665-100000@shell5.ba.best.com>
 <8f73p1$rgs$1@nnrp1.deja.com>
Organization: HDE Associates
X-Server-Date: 9 May 2000 18:31:00 GMT
User-Agent: MacSOUP/2.4.6
Newsgroups: comp.lang.ada
Date: 2000-05-09T18:31:00+00:00
List-Id: <comp.lang.ada>

Robert Dewar <robert_dewar@my-deja.com> wrote:

> In article
> <Pine.BSF.4.21.0005080941230.24665-100000@shell5.ba.best.com>,
>   Brian Rogoff <bpr@shell5.ba.best.com> wrote:
> > I've heard similar statistics before, but I wonder how the
> > cost estimation is done, and if it is biased towards certain
> > kinds of software.
> 
> The figure obviously varies with the kind of software. 70% is
> the lowest figure I have ever heard quoted, most measurements
> are in the 80-90% range.
> 
> (I would think that Y2K remediation has pushed many fiscal
> programs into the 95-99% range :-)
> 

Barry Boehm (in Chapter 30 of Software Engineering Economics) discusses
this. 10-year life-cycle costs ranging from 60% to 75% seem typical. 

-- 
Harry Erwin, PhD, <herwin@gmu.edu>, Bat Researcher, Senior SW Analyst 
and Security Engineer, and Adjunct Professor of Computer Science, 
George Mason University.