It is called this way because of its shape that looks like a fishbone.
It is also called Ishikawa Diagram and Cause and Effect Diagram.
The problem and its causes are recorded as a diagram that resembles the skeleton of a fish.
In the example, you can see that the problem is on the fish head. Ishikawa describes the process as one in which 'you write your problem down on the head of the fish and then let it cook overnight'.
It was developed by Professor Kaoru Ishikawa of the University of Tokyo.
The primary purpose of this exercise is to identify and list all the possible causes of the problem.At this it is important to indicate the really essential reasons, without going into too much detailing.To design easily the Fishbone diagram, you can use a special Concept Draw DIAGRAM ector graphic and diagramming software which contains the powerful tools for Fishbone diagram problem solving offered by Fishbone Diagrams solution for the Management area of Concept Draw Solution Park. Fishbone Diagram Problem Solving Fishbone Diagrams Solution contains the Fishbone Diagrams library with a lot of ready-to-use vector objects by using which a Fishbone diagram can be simply created even by a beginner.The completed diagram is analyzed to determine the problems that needs to be solved.In order to determine the relative important of the causes, we can use Pair Ranking algorithm. ' and list the possible causes in ovals that connects to the problem statement.These categories typically include: man, machines, materials, methods, measurements and environment.Fishbone Diagram is an useful approach to identifying problems.Sometimes it is difficult to spot problems and only symptoms will be acted on leaving the real causes intact.This indicates lack of information and poor understanding of the problem and leads usually to a weak solution.You can use them with other developers to come up with better design for your software projects.The Ishikawa diagram, Cause and Effect diagram, Fishbone diagram — all they are the names of one and the same visual method for working with causal connections.