Path: utzoo!attcan!uunet!mcvax!ukc!cs.tcd.ie!csvax1!omahony
From: omahony@cs.tcd.ie (Donal O'Mahony - OMAHONY@cs.tcd.ie)
Newsgroups: comp.software-eng
Subject: Question for COCOMO users
Message-ID: <30797@cs.tcd.ie>
Date: 11 Jan 89 18:25:56 GMT
Organization: Computer Science Department, Trinity College Dublin
Lines: 30

I am preparing a short course in Software Cost Estimation in COCOMO,
and have a question that a seasoned user of the method may be able to
answer - I can't find it in Boehm's "Software Engineering Economics"!

::
In the intermediate model- assuming organic mode development

EFFORTnominal = 2.4(KDSI)**1.05

Effort Multipler = (product of 15 cost drivers)

EFFORTactual  = (Effort Multipler).EFFORTnominal

: So far, so good - the difficulty come in the scheduling equation

which of the following is TRUE?

A)   TDEV = 2.5(EFFORTnominal)**0.38
or
B)   TDEV = 2.5(EFFORTactual)**0.38

:  If the correct formula is (B), then if the SCED driver is 
very low (1.23), one should get a 75% reduction in schedule.  Does
this mean 75% or (A) or (B).

I'd appreciate any help with this.
_______________________________________________________________________
Donal O'Mahony        omahony@cs.tcd.ie
Computer Science Dept., Trinity College, Dublin 2, Ireland
_______________________________________________________________________