Figure 6. Subsystem structure of the final integrated model. Each box corresponds to a subsystem that is identified by its name on top. The arrows represent the main process linking each subsystem to the others. The upper number corresponds to the components in each subsystem, and the parentheses show the number of components imported from other subsystems. The lower number corresponds to the interactions in each subsystem, and the number in parentheses shows the interactions imported from other subsystems.