Now define the problem clearly and write it on the fish head;

Decompose the possible causes of the problem to the first level and write it on the fish steak;

The second layer decomposes each cause and writes it on the fishbone;

Determine the correlation between causes;

Analyze the main reasons and secondary reasons;

List all possible reasons.

Because fishbone diagram is often used to analyze reasons, it is an analysis method that can discover the essence through phenomena, so its application field is very wide.

1, demand management: mainly in demand attribution analysis. Based on the natural structural characteristics of fishbone diagram, its origin and trunk are distinct, so we can keep our attention to the origin and trunk from beginning to end without deviating. Generally speaking, it is helpful to understand the evolution process of demand analysis, so as to grasp the relevant needs.

2. Quality management: applicable to quality correction, prevention and improvement. From personnel, machinery, raw materials, methods, environment and other aspects, determine its relevance to the problem, and then take certain measures to solve the problem.