Industry data on exponential loss in productivity with increasing team
size can be found in slides 14 and 15 of my Scrum Theory presentation
On Thu, 27 Jan 2005 15:58:37 -0600, Cote' <bushwald@...> wrote:
> Recently, I playing around with some *extremely* rough guess work
> about how long it would take teams of various sizes to complete a set
> of work. For example, say I had an estimated work load of 6 months,
> and I wanted to see how long it would take for a team of 3, 7, 10, and
> 15 to complete it. (I realize that's a completely fantasy-land task to
> go about doing.)
> When doing this, I was trying to come up with a communications
> overhead load factor to apply: something that simply helps illustrate
> the point that for each person you add, there's a certain amount of
> time added because the group of people grows and, thus, the time it
> takes to communicate as a team grows as well.
> I was sure I'd read something about this somewhere, but I couldn't
> find it. Almost every source I read mentioned this problem, but didn't
> give any rule-of-thumb type metrics to use.
> So, my question is, what are some good numbers to use to get a feeling
> for the extra time, due to communications overhead, that adding more
> team members creates?
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Jeff Sutherland, Ph.D.
CTO PatientKeeper Inc.
Certified ScrumMaster Practitioner and Inventor of the Agile Scrum Process
Microsoft Business Framework Advisory Council
Object Management Group/HL7 Liaison Committee
Co-Chair, HL7 Orders and Observations Technical Committee
Co-Investigator, Operating Room of the Future, Univ. of Maryland Medical System