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A controlled experiment on the effects of PSP training: detailed description and evaluation

Prechelt, Lutz; Unger, Barbara


The Personal Software Process (PSP) is a methodology for
and continuous improvement of an individual software engineer's
software production capabilities. The proponents of the PSP
claim that
the PSP methods improve in particular the program quality and
capability for accurate estimation of the development time, but
do not
impair productivity.

We have performed a controlled experiment for assessing these
related claims. The experiment compares the performance of a
group of
students that have just previously participated in a PSP course
a comparable set of students from a ``normal'' programming
This report presents in detail the experiment design and setup,
results of the experiment, and our interpretation of the

The results indicate that the claims are basically correct, but
improvements may be a lot smaller than expected.
However, we found an important additional benefit from PSP that
is not
usually mentioned by the PSP proponents: The performance in the
group was consistently less variable for most of the many
variables we
investigated. Less variable performance in a software team
... mehr

Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Programmstrukturen und Datenorganisation (IPD)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 1999
Sprache Englisch
Identifikator ISSN: 1432-7864
KITopen-ID: 7699
Verlag Universität Karlsruhe (TH)
Serie Interner Bericht. Fakultät für Informatik, Universität Karlsruhe ; 1999,1
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