Quality control

Quality control (QC) is a process by which entities review the quality of all factors involved in production. This approach places an emphasis on three aspects:

1. Elements such as controls, job management, defined and well managed processes, performance and integrity criteria, and identification of records.
2. Competence, such as knowledge, skills, experience, and qualifications.
3. Soft elements, such as personnel, integrity, confidence, organizational culture, motivation, team spirit, and quality relationships.

The quality of the outputs is at risk if any of these three aspects is deficient in any way.

History

Quality control evolved from the manufacturing sector's need to ensure that products were of a high standard and consistent. During World War II, quality became a crucial component of the war effort: Bullets, airplanes, and tanks had to be well made and reliable.

Quality control in manufacturing

In manufacturing, quality control is a process that ensures customers receive products free from defects and meet their needs. When done the wrong way, it can put consumers at risk. For example, the recent defect found in Takata airbags resulted in the biggest automotive recall in history.

Quality control in services

In the service sector, quality control involves ensuring that services are carried out in the most effective and efficient manner. This can involve a range of activities, from monitoring customer satisfaction and feedback to implementing quality management systems such as ISO 9000.

Quality control methods

There are many methods of quality control. At its simplest, quality control is achieved through inspection. For example, in a manufacturing business, trained inspectors examine samples of work-in-progress and finished goods to ensure standards are being met.

See also

• Quality assurance
• Quality management system
• Total quality management
• Good manufacturing practice

References

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  Quality control