A production plan 81 to produce (N×L) number of components Wp that have been mounted to mounting target points Bp is acquired, and an evaluation regarding the production time needed to implement the production plan 81 is performed. Specifically, the evaluation is performed regarding the production time for a case when the production plan 81 is implemented using a first mounting mode, in which one substrate B is stopped at each of M number of mounting locations P2, P4 respectively corresponding to M number of mounting units 4A, 4B, and when components Wp are mounted to all of L number of mounting target points Bp of the substrates B at the mounting locations P2, P4, then the substrates B are conveyed out from each of the M number of mounting locations P2, P4. On the basis of the result of this evaluation, it is determined whether or not to use the first mounting mode to implement the production plan 81. Consequently, the production plan 81 can be implemented according to the first mounting mode in a situation in which the first mounting mode is efficient. It is thus possible to implement efficient component mounting in accordance with the situation.
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