Modeling The Physical World
v A computer model represents characteristics of some
physical, social, or economic phenomenon, and
attempts to reproduce or approximate its behavior
and/or outputs in response to inputs
o Trivial example -- the Mac’s Audio CD Player, discussed as
the “perfect GUI,” attempts to replicate a physical CD player
to aid users in understanding its operation
o Complex example -- Boeing’s 777 was designed on-line;
certain parts such as the wing used sophisticated techniques
computational fluid dynamics to create an “optimal” design
The examples have dramatically different purposes