The ISO9000 family of standards is a scientific summary of the quality management practices of many economically developed countries around the world, providing organizations with scientific methods and means of quality management and quality assurance. ISO 9001 does not refer to a single standard, but rather a collective term for a class of standards. It is all international standards developed by TC176 (Quality Management System Technical Committee) and is the best-selling and most common product among the more than ISO 12000 standards. The ISO9001 quality management system certification standard is a summary of the development of management theory and practice in many countries, especially developed countries, over the years