Decision Fault Tree (DFT) based Binary Decision Diagram (BDD) was presented, which applied in the expert system in combination with Case Based Reasoning (CBR). A diagnosis model, which integrated DFT and CBR, was built.

• 本文分析了飞机航线维护排故专家系统的特点，提出了基于二元决策图的判定故障树方法，并将该方法和基于事例推理的方法应用于专家系统的开发，给出了这两种方法的集成诊断模型。