Rainer Kröning, Berlin

Fishbone Diagram - Ursachen-Folgen-Kette - Ursache-Wirkungs-Diagramm

Application - Use - Example - Tools - Templates


A diagram showing one problem and its large number of possible causes. The detailed causes will be attached to a small number of categories. So the completet diagram looks like the skeleton of a fish.

The fishbone diagram is used for


Write the problem on the right-hand side of the Page. Draw a large arrow pointing towards the problem.
Draw smaller arrows indicating the main categories of causes (a good many times 6-M-Method: Man, Management, Material, Method, Machine und Milieu (ambience)).
Brainstorm for detailed causes within the main categories. Attach each detailed cause to the appropriate main category.
Break down the detailed causes by brainstorming for further particulars.


A search for potential error causes.

Sheet Fishbone Diagram


MS Excel.


EXCEL Form: Fishbone Diagram


Die Weisheit eines Menschen misst man nicht nach seinen Erfahrungen, sondern nach seiner Fähigkeit, Erfahrungen zu machen.

George Bernard Shaw
1856 – 1950
irisch-britischer Dramatiker


Ein Bratscher zum Kollegen: "Du, ich hab die ganzen Orchesterferien geübt, ich kann jetzt Achtel!"
"Toll, spiel mal eins!"