Gio Wiederhold PDM 27
Even the present needs SimQL
time
past                                            now                           future
last recorded observations
simple simulations
to extrapolate data
 Is the delivery truck in X?
• Is the right stuff on the truck?
• Will the crew be at X?
• Will the forces be ready to accept delivery?
point-in-time for
    situational
    assessment
Not all data are current: