Dickeson--Lift, Pull and Other Dirty Words

Third, we overlook the "Law of Chaos" probability in printing. This theory teaches us that small changes in input cause major changes in output. There are five clusters of variables in the printing process: materials, people, machines, environment and form sequencing. Minor variances within, and between, these clusters make process performance unpredictable. To these five internal clusters add a sixth—an external variable: customer schedule maintenance and specification compliance.