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What is partial order planning?

  • A.Searching a space of plans with only necessary orderings imposed
  • B.Planning in which the goals are only partially specified
  • C.Ordering the actions of a plan only after it has been found
  • D.Planning that produces several alternative plans at once

Answer: A

A partial order planner adds actions and causal links, committing to an ordering between two actions only when a conflict requires it. The result is a plan any linearisation of which works, which suits parallel execution. Partial goals, post hoc ordering and multiple plans are different notions. Deferring a commitment until it is forced is the principle of least commitment, and it is the organising idea of the whole approach.

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