基于向量投影的TOPSIS方法在印刷设备购置决策中的应用

随着数字印刷时代的到来,印刷设备性能指标日趋多样化、复杂化.对于印刷企业来说,如何构建系统且科学合理的量化决策方法成为印刷设备购置中亟待解决的一个关键问题.本研究针对印刷设备购置决策问题,提出了一种基于向量投影的TOPSIS方法.先采用序关系分析法来计算权重向量;再运用向量投影法来判定各方案与理想解的贴近程度;最后,结合具体的购置优选印刷设备案例来验证基于向量投影的TOPSIS方法的可行性和实用性.对比实验结果显示,利用该方法的决策评估结果更具正确性和科学性,且模型计算相对简单.

Study on Application of TOPSIS Method Based on Vector Projection in Printing Equipments Purchase Decision-Making

With the advent of digital printing era, the performance index of printing equipments are showing a diversified and complicated trend. For printing enterprises, it is important to build a scientific and rational method for purchasing the printing equipments. To solve the decision-making problem of the printing equipments purchasing, TOPSIS method based on vector projection was proposed in this study. Firstly, the sequencing relationship analysis of each index was used to calculate the weight; and the projection method was introduced to determine the close degree of the alternatives and the ideal solution. Secondly, an equipment purchase decision-making example was given to verify the feasibility and effectiveness of TOPSIS method based on vector projection. Finally, the evaluation results of the decision-making obtained with TOPSIS method based on vector projection have been proved more accurate and scientific through the contrast experiment, and the calculation of the model is relatively simple.