ISO 9001:2000 provides requirements for quality management systems that can be used by any organization to help achieve customer satisfaction through consistent products and services. It includes requirements for continual improvement of the quality management system. ISO 9004:2000 provides guidelines for performance improvement that aim to increase organizational performance and customer satisfaction. It offers information to help organizations go beyond the basic requirements of ISO 9001:2000 to improve operational efficiency. Both standards use a process approach and harmonized structure to allow organizations to move between the two standards.