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From: nigel@access5.digex.net (Nigel Tzeng)
Subject: Re: What is wrong with OO ?
Date: 1996/12/09
Message-ID: <58i7qg$fpg@access5.digex.net>#1/1
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references: <32A4659D.347A@shef.ac.uk>
 <slrn5aft9g.9ce.harry@matilda.alt.net.au> <32A82932.4A73@mci.com>
 <slrn5ai5m2.9ce.harry@matilda.alt.net.au>
organization: Express Access Online Communications, Greenbelt, MD USA
newsgroups: 
 comp.lang.c++,comp.lang.smalltalk,comp.lang.eiffel,comp.lang.ada,comp.lang.java,comp.object,comp.software-eng
Date: 1996-12-09T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <slrn5ai5m2.9ce.harry@matilda.alt.net.au>,
Harry Protoolis <harry@alt.net.au> wrote:
>On Fri, 06 Dec 1996 09:09:54 -0500, Ralph Cook <ralph.cook@mci.com> wrote:
>>Harry Protoolis wrote:

[snip]

>Point taken, I guess what I am saying is that the hard statistical
>evidence needed doesn't exist yet. It is too early to call OO a failure,
>and given all we have is anecdotal evidence, IME the balance is on the
>positive side

FWIW In Rise and Resurrection Ed Yourdon has an excerpt from "Survey
of Advanced Technology" by Chris Pickering for the years 1991 and
1993.  

The top performer in 1991 was OO/OOPS with percentage used 3.8,
percentage succeeded 91.7 and effective penetration 3.5.

In 1993 the worst performer was OO/OOPS with percentage used 11.9,
percentage succeeded 66.3 and effective penetration of 7.9%.

As a reference Structured Methods had a 84.2 success rate in 1993.
RDBMS were the top performer of that year at 96.0 (Gee...I guess we
finally know how to write and use RDBMS eh?).

I never did bother to find the original study so I don't know the
sample size, how he gathered data and so forth.

As with all statistics YMMV.

>Harry Protoolis                              alt.computer pty ltd