Quality control (QC) is a systematic process used by organizations to ensure that products or services meet specified quality standards and comply with predetermined requirements. It involves the systematic examination, testing, and monitoring of processes, materials, and outputs to identify and correct defects or deviations from established quality criteria. Quality control is an integral part of quality management, aiming to deliver consistent and reliable results that meet or exceed customer expectations.

The scope of quality control encompasses various aspects of production and service delivery:

  • 1. Raw Materials Inspection: Examining and testing incoming raw materials to ensure they meet quality specifications before they are used in the production process.
  • 2. In-Process Inspection: Monitoring and evaluating production processes to identify and address any deviations from quality standards as products are being manufactured.
  • 3. Finished Product Inspection: Thoroughly examining the final output to verify that it meets the defined quality criteria and complies with customer requirements.
  • 4. Testing and Analysis: Performing tests, measurements, and analyzes to assess the physical, chemical, or functional properties of materials or products.
  • 5. Documentation and Record Keeping: Maintaining comprehensive records of quality control activities, test results, and corrective actions taken to demonstrate adherence to quality standards.
  • 6. Process Improvement: Continuously analyzing quality data to identify opportunities for process improvement and implementing corrective actions to prevent recurrence of quality issues.
  • 7. Employee Training: Providing training and resources to employees involved in the production or service delivery process to ensure they understand and adhere to quality control procedures.
  • 8. Supplier Quality Management: Collaborating with suppliers to establish and maintain high-quality standards for materials and components supplied to the organization.