ISO 9001 is the international standard for quality management systems. This standard provides guidelines  required for a good quality management system. ISO 9001 allows organisations to demonstrate that they can consistently deliver products and services that meet the quality requested by customers. It is also used for streamlining processes and to make them more efficient. ISO 9001 can be used by internal and external parties (including certifying bodies) to assess whether a properly functioning quality management system is in place.