* OQC (Outgoing Quality Control) – outgoing product quality control.
* AQL (Acceptable Quality Limit) – the worst permissible quality level when a continuous series of batches is submitted for
acceptance.
* FAI (First Article Inspection) – quality inspection of the first item.
* IPQC (In Process Quality Control) – quality control on the technological process.
* OQA (Outgoing Quality Assurance) – the last quality inspection procedure before the product leaves the factory.