Systems dynamics is a computer-based tool for visualizing how parts of
an organization work together over time. Its use is growing rapidly f
or planning and process improvement in technical organizations. Feedba
ck loops among elements mimic complicated behavior in real or imagined
situations. The method is valuable to individuals and groups for shar
ing and improving mental models used in administrative decision making
. Experimenting with a simple research funding model validated the use
r-friendliness and potential utility of available software.