What are the common methods for listening to river maps?

Does the subject want to ask "what is the general method of pro-river map?" Brainstorm. Affinity diagram is a method to sort out a large number of collected facts, opinions or ideas according to their affinity (similarity), so as to make the problem clear and gain a unified understanding to help solve the problem, also known as KJ method. Brainstorming and affinity diagram can be described as golden partners: brainstorming is responsible for spreading and stimulating good ideas; Affinity graph is responsible for convergence and inducing good classification. So affinity diagrams can be used in conjunction with brainstorming. Brainstorming can be used to identify existing quality problems and seek solutions. It can also be used to identify potential quality improvement opportunities and is widely used in quality improvement activities. This method can be used in drawing causality diagram, tree diagram and affinity diagram.