As defined in the regulations at Toyota’s plant, the Quality Assurance should be a quality product that it promotes satisfaction, reliability, and economy for consumers.
These regulations outline describes the activities of each department of quality assurance at all stages from product planning to sales and service. Furthermore, the regulations say when and what should be guaranteed by whom and where.That rule is defined as when the eight steps that can be used in a series of business activities from planning to sales.
Such steps, among others:

1. Planning products.
2. The design of the product.
3. Preparation of fabrication.
4. Purchase.
5. The designation for sale.
6. Examination.
7. Sales and service.
8. The quality audit.

Terms whom and where a special dapartemen managers and department name. What, consisting of the goods are secured and operations for assurance and operations to guarantee it.