Digital control is accurate and efficient; it is not only suitable for simple batch work, but also for complex single-room work; not only about standards, procedures, but also standards, and credit. Once the operation violates the design route, numerical control It will automatically respond, and the "command" is in various aspects of work. The system is to standardize behavior, unify the direction and improve efficiency. Management depends on the system, such as numerical control. from that we get? ['the steward, the meaning of restraint is also rigid, it is a hard constraint.', 'system is the essence of management.', 'without a system, it leads to different behaviors, staying away from or even deviating from pre-set goals.', 'Without a system, the procedures or codes of conduct that members need to abide by are lost.']