An inspection measures, examines, and tests one or more of the characteristics of products and compares the results with the specified requirements to establish whether conformity is achieved. Inspection also refers to checking products, whereas an audit applies to analyzing the manufacturing process. A quality inspector usually follows a pre-established checklist, which is based on the specifications of the product. The inspected products are then fit to be used for production, as semi-finished goods as well as finished goods ready for shipments to customers.