ISO 9001 is an international quality management standard that provides requirements and guidelines for quality management systems. It aims to help organizations be more efficient and improve customer satisfaction. The standard focuses organizations on processes that affect product and service quality to ensure consistency and meet requirements. Key aspects of ISO 9001 include its focus on customer needs, use of the PDCA cycle for continual improvement, and establishment of processes, responsibilities and documentation. Adopting ISO 9001 helps organizations improve efficiency, competitiveness and market access.