Computer modelling and simulation have become increasingly important in man
y scientific and technological disciplines owing to the wealth of computati
onal power. tabulation of the behaviour of these computational models is in
creasingly replating experiments on real world objects-for example, in the
tar industry (tests based on simulated clashes) or in the development of nu
clear weapons-and is becoming an indispensable tool In the development of n
ew products and procedures.