Gio Wiederhold PDM 13
Simulations predict
1.Back-of-the-envelope
•Common
•Adequate
if model is simple
•Assumptions
are easily forgotten after some time,
not
distinguished from data "Why are we doing this"
2.Spreadsheets
•Most
common computing tool
•Specialist
modeler can help
•New, recent data can be pasted in
•Awkward
for the tree of future alternatives
3. Constructed to order
•Costly,
powerful technology
•Specialist
modelers required
•Expressive
simulation languages
•Requires
specialists to set up, run, and rerun with new data
Iv
gH
Xy
mN
DM