Clock
System
state
Entities
and
attributes
Set1
Set2
....
Future
event
list, FEL
Cumulative
statistics
and
counters
t
(x, y, z, ...)




(3, t1) - Type 3 event to
occur at time t1
(1, t2) - Type 1 event to
occur at time t2

. . . . . . .
. . . . . . .
. . . . . . .

Prototype system snapshot at simulation time t.

Old system snapshot at time t
CLOCK
Syetem
state
...
Future event list
...
t
(5, 1, 6)

(3, t1) - Type 3 event to occur at time t1
(1, t2) - Type 1 event to occur at time t2
(1, t3) - Type 1 event to occur at time t3
. . . . .
. . . . .
. . . . .
(2, tn) - Type 2 event to occur at time tn

New system snapshot at time t1/sub>
CLOCK
Syetem
state
...
Future event list
...
t1
(5, 1, 5)

(1, t2) - Type 1 event to occur at time t2
(4, t*) - Type 4 event to occur at time t*
(1, t3) - Type 1 event to occur at time t3
. . . . .
. . . . .
. . . . .
(2, tn) - Type 2 event to occur at time tn

Advancing simulation time and updating simulation image.