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What is the subsumption architecture?

  • A.A hierarchy of goals decomposed into progressively simpler subgoals
  • B.An architecture in which one agent subsumes the goals of several others
  • C.A knowledge representation in which classes subsume their subclasses
  • D.Layered behaviours in which higher layers override lower ones

Answer: D

Brooks proposed building a robot from simple behaviours such as avoid obstacles and wander, each connected directly from sensors to actuators, with higher layers suppressing lower ones when appropriate and no central world model at all. It produced robust insect like behaviour and challenged the symbolic tradition directly. Goal decomposition, agent delegation and class hierarchies are different ideas. An architecture that deliberately omits the world model is a sharp test of whether one is necessary.

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