ISO and QA are closely related, as many ISO standards provide guidelines for implementing effective quality management systems, including processes for quality planning, quality control, and quality improvement. Organisations that adhere to ISO standards often have well-established QA processes and are committed to providing high-quality products and services to their customers. ISO 9001 is the most widely recognised and adopted standard for quality management systems (QMS). It provides a systematic and continuous approach to QA, from identifying customer needs to monitoring and improving processes and services. Organisations that are certified to ISO 9001 demonstrate their commitment to providing quality products and services, and to continuous improvement of their QA processes.