The fish bone map was invented by Mr. Ishikawa, a Japanese managing master. It is also called Ishikawa map ". The purpose of a fish bone chart is to find the "Root Cause" of the problem, so Ishikawa chart is also called "cause ".
The fish bone chart is similar to the mindmanager tool that we often use. When we want to establish an overall understanding of a problem, we often use the powerful brainstorm capabilities of mindmanager, divergence and analysis are carried out around a problem point.
Compared with mindmanager, The Fishbone Diagram is more focused on analyzing the characteristics of impact problems. We brainstorm to find the cause of this problem, and associate them with feature values to form a hierarchical and clear picture based on their correlations, this is a fish bone chart in the shape of fish bone (Fishbone digoal.
Brainstorming is essential to the creation of mindmanager and fishbone diagrams. So what is brainstorming? Brainstorming should focus on a specific issue, and everyone can't talk about their own opinions. The Conference initiator should provide a loose environment, and the participants will express their own opinions and propose new ideas, then, we will record the opinions of all people and ultimately form a solution to the problem.
Good brainstorming sessions
1) The Conference sponsor often sends the conference topics and related materials to the participants before brainstorming, and collects relevant opinions, so as to fully mobilize the enthusiasm of the participants.
2) the number of people involved in brainstorming should also be controlled. In principle, it is best to have fewer than 10 people. If there are experts or persons involved in solving similar problems, the proposal of the solution to the problem has a positive promotion effect.
3) in terms of the division of labor, there should be a host, similar to the role of the scrum master, which controls the overall pace and atmosphere of the entire meeting and is not allowed in brainstorming. In addition, there should be a recorded person to record valuable information throughout the meeting.
4) The Conference discipline emphasizes that the appearance of onlookers is not allowed. All participants should concentrate and actively participate in the discussion of the issue, rather than small groups for discussion.
5) in brainstorming, members can talk freely without having to run their questions. Their identities are equal and criticism is not allowed. Even if criticism is unavoidable, it should also be conducted after the meeting, and brainstorming will pursue the number of idea.
6) In principle, the meeting time should not exceed 45 minutes.
There are two types of fish bone chart: Cause Analysis and Countermeasure Analysis. Among them, the cause analysis type usually targets the "Why ...". The Countermeasure Analysis type is aimed at the problem of "how to improve/improve. Cause analysis: the fish bone map is on the right side of the fish head, the countermeasure analysis is on the right side of the fish bone map, and the fish head is on the right side.
How to draw a fish bone chart?
1) First, we determine the problem we need to solve. The problem to be solved is the head of the fish, and then draw the backbone of the fish bone map next to the head of the fish. We will expand the backbone of the fish.
2) write a few reasons or countermeasures on the trunk bone, and use a rectangle to frame it. After drawing, we should try our best to ensure that the angle between the trunk bone and the big bone is 60 degrees. On-site problems: "Man-Machine material method ring", management problems around "personnel-time features ".
3) in the middle of the big bone and the trunk bone, parallel paintings of the bone and the middle bone are used to describe the fact. The middle bone can produce a small bone, and the small bone is used to support the conclusion of the middle bone, it is used to describe why this problem occurs.
4) after going deep into a certain level, whether or not to continue depending on the specific situation of the problem, generally within five layers.
Fish bone chart practice