In this paper, a new BDI model for rational agents is presented by introducing assumptive belief with traditional belief in order to express the intuitive meaning of desire and intention on the cognitive aspect of the metal state of rational agents.

• 该文通过引入假设信念 ；解释愿望和意图在 Agent思维状态的认知方面的含义 ；进而定义愿望和意图 ；并引入规划 ；建立理性 Agent的动态 BDI模型 .