quality of the production process, the people, machine, material, method, ring, measuring six aspects control used in the practical work of the above control working in companies such as the whole plan of the quality system improvement, on the basis of the established standards, through the investigation and analysis of process quality, found that all processes and departments current when performing a deviation, the specific requirements and system requirements and improvement measures, do the same and do write, do agree with record, through continuous improvement, continuous cycle, so as to realize the continuous improvement of the quality system.