关键词: 可用性, 决策与试验评价实验室, 自相关性, 市场竞争评价矩, 卖点, 数控机床

Abstract: Aiming at the problem that the index self-correlation and market competition factors were ignored in traditional CNC machine tool available demand indicators to determine the weights,Decision-Making and Trial Evaluation Laboratory (DEMATEL) method was introduced to analyze the demand index of autocorrelation,and the preliminary revision of initial weights was made with centrality index vector.Both considering market factors,the introduction of selling points on demand indicators was used to evaluate market competition,and the usability requirements index weight was further revised through market competition evaluation moment.Thus the final weight for user availability requirements was obtained.To realize the comprehensive consideration of user demand,the availability index weight of enterprise market competition information was determined.The feasibility of this method was illustrated by an example of product usability requirements of a processing center.

Key words: availability, decision-making and trial evaluation laboratory, self-correlation, market competition evaluation matrix, selling points, CNC machine tools