What are the methods of qualitative prediction?

It can be divided into intuitive prediction method (including analogy prediction method) and opinion set method (expert meeting method and Delphi method) \x0d\ 1. Analogy forecasting method: according to the similarity between the market and its environment, the demand and evolution of a known product/market region are used to infer the demand and changing trend of other similar products/market regions. It is an analytical reasoning method from local, individual to special. It is suitable for demand forecasting of new products, new industries and new markets. According to the different forecast objectives and market scope, analogy forecasting methods can be divided into three types: product analogy, industry analogy and regional analogy forecasting. \x0d\ 2。 Expert meeting methods: brainstorming (non-confrontational meeting), confrontational meeting and mixed meeting (questioning brainstorming) \x0d\ 3. Delphi method: widely used. ② Select experts (20 persons); ③ Design a questionnaire; \x0d\④ Organize investigation and implementation (2-3 rounds); ⑤ Summarize and process the survey results.