Quality control is a part of enterprise management, focusing on implementing quality requirements. Quality control is the control of processes that create products or services through controlling factors such as people, machines, materials, methods, information and work environments.

1. Raw materials are the main factor of input that directly affects product quality. For good quality products, the quality of input materials must be guaranteed.

2. Equipment and technology factors are important factors, especially affecting productivity and product quality.

3. The human factor here, including all human resources in an organization from top management to employees, is involved in the quality creation process.