ProductionA production line that produces pens rarely produces defective units. When defects occur, usually the entire lot is impacted because a machine is out of calibration. Management decides that testing one pen in every lot of 10,000 is sufficient quality control. When a pen is defective, the entire lot is tested and the problem is immediately escalated to quality assurance.
MaterialsA food manufacturer performs a basic inspection of ingredients before producing a batch. As an additional control, the company randomly samples ingredients for detailed testing. When a test fails, production is halted and the issue investigated.
ServicesA chain of restaurants controls quality with secret visits and surprise evaluations.
|Overview: Acceptance Sampling|
Estimating the quality of production or service delivery by sampling operational outputs.