The method starts from the precise definition of a problem. It is also called the KJ Method or Team Kawakita Jiro (TKJ). It is a quality method created by the Japanese anthropologist Kawakita Jiro in the 1960s. It is a method that allows to focus efforts and find deficiencies or weaknesses in a process. This leads to broadening the team’s knowledge of the problem, increasing the control it has over the process or service. To answer it, communications can be initiated outside the work team, or internally in the company or even with external suppliers. Questions may go unanswered because the answer is ignored. On many occasions this process is long, as it cannot be executed completely within the selected team of people.
If not, the iteration of questions must continue. That is, when a precise answer is obtained from the origin of the problem. This method ends when the response is an inefficient or nonexistent process. The pursuit of questions is motivated by the fact that a problem usually has more than one root cause. The goal is to find the root cause of a problem. With few resources, very positive results can be achieved. It is not a rigid method, nor does it provide strict rules, its potential lies in its simplicity. The “5” is because it is usually the number of iterations necessary to solve a problem. The method is based on the iteration of questions.
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