The department quality leader was experienced in cause-and-effect determination techniques. They decided to explore the causes of long waiting times by using a cause-and-effect diagram.

Fishbone diagrams, also known as Cause and Effect Diagrams ... used in the 1920s and is considered one of the seven basic ...

It can also be used in quality defect prevention to identify potential factors causing an overall effect ... diagrams are management tools used for quality control that help identify the root ...