QC: Quality Control, quality control, product quality inspection, quality analysis after the discovery, improvement and control of nonconforming goods related to the general staff. Generally include: IQC (Incoming Quality Control) means incoming quality control, referred to as incoming control. IPQC (In Put Process Quality Control) Chinese meaning for the process control, refers to the product from the production of raw materials into the final product packaging process quality control. FQC (Finish or Final Quality Control) Finished product quality inspection OQC (Out Quality Control) finished product inspection DQC (Design Quality Control) design quality control MQC (Manufacture Quality Control) process product seized QA: Quality Assurance, Quality Assurance, Ensuring Quality by Establishing and Maintaining a Quality Management System. Generally include: Design Quality Assurance IDQA Design Quality Assurance, such as DQA Manager (Design Quality Assurance Manager) QE (Quality Engineer) Quality Engineer JQE (Joint Quality Engineer) Client Quality Engineer, a quality engineer for a customer who spends money on a supplier's behalf, is the eyes and ears of a customer's SQE. SQE (Supplier Quality Engineer) Supplier Quality Engineer.