Decision analysis is a comprehensive discipline closely related to economics, mathematics, psychology and organizational behavior. Its research object is decision-making, and its research purpose is to help people improve the quality of decision-making and reduce the time and cost of decision-making. Decisions are made by people, and people are the subject of decision-making. In the process of decision-making analysis, the decision-making body who only undertakes tasks such as raising questions or analyzing and evaluating plans is called the "analyst", while in the process of decision-making analysis, the decision-making body that can make the final decision is called the "leader."
