Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!mcvax!ndosl!fdmetd!steinar
From: steinar@fdmetd.uucp (Steinar Overbeck Cook)
Newsgroups: comp.software-eng
Subject: Re: code reviews
Summary: Design errors are the most expensive
Message-ID: <455@fdmetd.uucp>
Date: 21 Jun 89 06:21:08 GMT
References: <12047@bloom-beacon.MIT.EDU> <116@opel.UUCP>
Organization: Fellesdata a.s, Oslo, Norway
Lines: 28


 In article <12047@bloom-beacon.MIT.EDU> tada@athena.mit.edu (Michael Zehr) writes:
 [...]
 >
 >Since part of my job here is to improve programmer productivity, i'm
 >interested in eventually implementing some sort of procedure for
 >periodic peer reviews.  Does anyone have suggestions or
 >reccommendations?
 >
 >michael j zehr

In our comapny we use Arthur Andersen's Method/1 as our system
development methode. Our experience is that it is MUCH more expensive to
find an error in the late phases of a project, than to find it in the
requirement or design phase.

Actually the cost of changes in the software development life cycle are
signifcantly (10:1 to 100:1) or even more !! This, of course, depending
upon the size of your project/system.

This is described in: Bohem, B.W., Software Engineering Economics, 1981.


-- 
Steinar Overbeck Cook, Fellesdata a.s, P.O. Box 248, 0212 OSLO 2, NORWAY
Phone : +47 2 52 80 80                            Fax   : +47 2 52 85 10
E-mail : ...!mcvax!ndosl!fdmetd!steinar  or       steinar@fdmetd.uucp
<The opinions expressed, if any, do not represent Fellesdata a.s>