Requirements proposed by the customer becomes the basis for quality production. The quality of production must be controlled throughout the production value stream. Any possibility of bias makes defective must be standardized and made a point of critical of quality. For example, in terms of treatment of goods in the loading bay. If the raw material is fragile and requires special treatment, then every member should have training about the conduct of such material so as not to cause errors that affect product quality. Previous management company must make the standard treatment for raw materials.

After an agreement with the customer about the product to be manufactured, the task of management to make the rules, control and evaluate the course of production as well as oversee the product until it gets to the hands of consumers.