URL:https://i2.wp.com/www.investopedia.com/thmb/NYotnjc1R2uRZj4M22CTfgyBQUU=/6253x0/filters:no_upscale():max_bytes(150000):strip_icc()/IshikawaDiagram2-386e9108096f4149b67cb5a803c45dd0.png
掲載元:https://mapacuci.blogspot.com/2023/04/diagram-de-ishikawa.html