A firm of international lawyers wanted to improve their client management processes and to achieve registration/certification to ISO 9001. Their quality management system provides for the design and development of new services such as international tax planning and modifying traditional services to meet the requirements of new or amended legislation. They included purchasing control to cover the selection of computer hardware and software, as well as purchasing the services of specialist lawyers as needed. After successfully implementing ISO 9001, they used the self-assessment guidelines of ISO 9004:2015 to monitor their progress as they improved their quality management system.