McDonald's has made it mandatory for anyone who wants to own a McDonald's franchise to complete a course where they are trained in the main operations of a McDonald's store. These events are divided into McDonald's kitchen operations and employee management. The course aims to ensure that food quality in McDonald's stores is not negotiated and that smooth operation remains in all stores. Store decoration and architectural design are consistent across countries in the world. To maintain the quality of supplies, McDonald's has pre-approved a list of suppliers to which all franchisees must comply.