Figure 9.6 The system architecture
simulator architecture, the second phase on the manufacturing processes
implementation, and the last phase on the system integration.
Prototype 1: Event-based simulation . This consists of a simple appli-
cation that exemplifies the event-based simulation mechanisms. The
simulation is limited to the automated inventory system. Simulation data
are shown in a textual user interface.
Prototype 2: Work cell simulator . This adds a graphical user interface to
Prototype 1 and extends the simulator with all the work cell components.
Prototype 1: Event-based simulation
The first prototype exemplifies the functioning principles of the event-based
simulator. The test-bed consists in simulating the behaviour of the auto-
mated inventory system that supplies raw pieces to the drill and cutter
The simulator is a single-threaded application that runs on a PC. It is made
up of a collection of finite state automata and a centralized clock, which
schedules and fires events. Figure 9.7 depicts the analysis model described