The case study showed that the results of safety assessment could be filtered, and be much more accurate by reasoning the improved SDG model with the new inference engine based on rules.

• 案例分析表明，利用基于规则的SDG扩展推理引擎对过程的改进SDG模型进行推理，能够实现对评价结果的筛选，得出更加准确的安全评价结果。