中文摘要：

针对各决策时段的时间权重已知，属性值以区间三角模糊数形式给出的动态多属性决策问题，提出了一种基于逼近于理想解排序（TOPSIS）拓展的决策分析方法．方法首先利用给出的动态区间三角模糊加权平均（DITFWA）算子对各时段的评价值进行集成，以获取综合评价值．然后依据传统TOPSIS法的基本思想，对整个方案集进行排序并择优．最后给出一个实例进行分析，所得结果表明了该方法的实用性和可行性．

英文摘要：

With respect to dynamic multi-attribute decision making problem, in which period weights are given and attribute values at different periods are expressed in intervalvalued triangular fuzzy numbers, an extended decision making method based on TOPSIS （technique for order preference by similarity to an ideal solution） is presented. First, using the given dynamic interval-valued triangular fuzzy weighted averaging （DITFWA） operator to collect the evaluation values at different periods, the total evaluation values are obtained. Then, according to the basic ideology of the traditional TOPSIS method, the ranking of alternatives is obtained and the best solution is found. Finally, a numerical example is given, and the result shows the practicality and feasibility of the proposed method.