
Preface
In the first article of SIMULATION magazine in the Fall of 1963, the editor John McLeod proclaimed
simulation to mean ‘‘the act of representing some aspects of the real world by numbers or symbols
which may be easily manipulated to facilitate their study.’’ Two years later, it was modified to ‘‘the
development and use of models for the study of the dynamics of existing or hypothesized syst ems.’’
More than 40 years later, the simulation community has yet to converge upon a universally accepted
definition. Either of the two cited definitions or others that followed convey a basic notion, namely,
that simulation is intended to reinforce or supplement ...