Fishbone diagrams would help a service organization determine the source of a quality-of-service issue. A fishbone diagram, also known as a cause-and-effect diagram or an Ishikawa diagram, is a tool for identifying and analyzing the root causes of a problem or an effect. It uses a fish-shaped diagram to display the potential causes of a problem in different categories, such as people, processes, equipment, environment, etc. A fishbone diagram can help a service organization to determine the source of a quality-of-service issue by allowing the organization to brainstorm and organize the possible factors that may affect the quality of the service delivered to the customers, such as staff training, customer feedback, service standards, equipment maintenance, etc. A fishbone diagram can also help the organization to prioritize and test the most likely causes, and to develop and implement solutions to improve the quality of service12. References: 1 What is a Fishbone Diagram? Ishikawa Cause & Effect Diagram | ASQ 3 2 CPIM Exam References - Association for Supply Chain Management 1