In order to describe the complexity of aircraft and make the Digital Product Definition (DPD) model hereditable and patulous, a Product-Process-Resource (PPR) Knowledge Model for aircraft is presented.

• 摘要为描述飞机产品的复杂性，使数字化产品定义模型具有良好的可继承性和可扩展性，提出了飞机产品－过程－资源知识模型。