The chances of the word big data appearing are increasing. However, the handling of big data within companies remains unclear. Much of big data analysis is left outside the enterprise. Big data analysis The executive officer in charge of the resulting management information should be appointed. The status of an officer is a director under the Companies Act. This discussion begins with a focus on the decision-making technology defined by Simon. Note the judgment in Simon's classification. Pay attention to management information necessary for judgment. Through the above, it was pointed out that it was necessary to clarify the executive officer in charge of management information as a result of big data analysis.