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What is the difference between planning and scheduling?

  • A.Planning applies to the physical tasks and scheduling to the computational ones
  • B.Planning produces one plan whereas scheduling produces several
  • C.Planning chooses the actions; scheduling assigns them times and resources
  • D.Planning is done offline whereas scheduling is done during execution

Answer: C

A planner decides what must be done and in what causal order, while a scheduler decides when each action happens and which resource performs it. Real applications need both and the boundary between them is often blurred deliberately. Timing of the computation, domain and output count are not the distinction. Separating the causal from the temporal and resource questions is what allows each to be attacked by the technology best suited to it. Framing the question as which quantity the change acts upon makes the answer follow without calculation.

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