Which do QA and QC do?

QA is the abbreviation of Quality Assurance, that is, quality assurance. Generally speaking, it involves the risk control of products, mainly following up the mass production of products in the early and middle stages, which involves the safety of products. Some companies need to do experiments or QA experiments, but many companies hand over the experimental parts to third-party notaries.

QC is the abbreviation of Quality Control, that is, quality control. Generally speaking, the quality control of a factory is different from that of a trading company or a buyer. The QC of the factory is divided into IQC, IPQC, OQC, etc. Mainly responsible for the internal inspection of incoming materials, production process, semi-finished products and finished products to ensure the normal production of products and ensure that products can meet customer requirements. The main job of trading company or buyer QC is to make the final inspection before shipment, and check whether the finished product meets the shipment requirements from all aspects. Some QCs are also responsible for the intermediate work, but generally speaking, QCs don't need to do experiments.

The position of QA is higher than that of QC, and the corresponding ability requirements are higher. But QC is stricter in inspection. QC experts should have a big picture and a sharp eye to find unacceptable problems in time, which is the last pass before the products are shipped.