Delphi technique,a widely used qualitative predicative method in the U.S.,is characterized by the authority and anonymity of expert group members,the controlled convergence of predicative process and quantitative predicative statistics.

• 德尔菲法是美国广泛应用的一种定性预测方法,其特点是专家组成员的权威性和匿名性、预测过程的有控趋同性、预测统计的定量性。