在分析政府形象效能評價系統和信息置信度的基礎上，建立了基于信度函數的政府形象評價模型。運用該函數建模分析了政府形象評估中的理念識別系統、行為識別系統、視覺識別系統、環境識別系統以及個人識別系統等五大不確定性評價問題。經過理論分析，該函數對政府形象的評估有較大的參考價值。此外，該函數也可以用于對其他類似復雜性系統的效能評估，具有普遍適用性。
關 鍵 詞 信度函數; 評價; 政府形象; 模型

Abstract Based on the analysis of evaluation system of the government image, an evaluation model is built based on the belief function of the government image. This model is used to analyzes five uncertain problems of the evaluation of government image, including mind identity system, behavior identity system, visual identity system, environment identity system, and personal identity system. Our analysis shows that the belief function can bring more valuable reference for valuating the government image.
Key words brief functions; evaluation; government image; model