产品总体方案评价与优选的证据推理决策

Evidence Reasoning Decision Model for Product Outline Scheme Evaluation and Optimum Selection

产品总体方案评价与优选决策是产品设计过程中的重要步骤,它是决定总体设计之后进行详细设计的关键环节。考虑产品总体方案评价与选择决策过程中不确定、不完全主观判断的混合多属性决策问题,提出基于证据推理的决策模型;对决策属性中定量属性的证据处理以及不同定性属性不同辨识框下的情况进行了讨论。最后给出了实例。

The evaluation and optimum selection for product outline schemes is a very important step from conceptual design stage to detail design stage. With the consideration of uncertain and incomplete decision information in the decision making process, the decision model based on evidence reasoning is built in which the information of all attributes is integrated based on evidence theory. Then the evidence processing of the quantitative attributes and qualitative attributes with different frames of discernment is discussed. Finally, an example is showed.