The component data 20 is data including various information related to the component, and includes a “control parameter” 20b and a “component ID” 20a which are both pieces of identification information related to each component which are combined with each other. The “control parameter” 20b includes a component size, an acceleration that defines the operation of the suction nozzle 11a, and information related to a switching timing at which a valve connected to the suction nozzle 11a is turned on or off. The control unit 17 controls the operation of the mounting head 11 to pick up the component and to mount the picked-up component on the substrate 12 based on the component data 20. As mentioned above, the component data 20 is used as a control parameter when the component is mounted on the substrate 12 by the mounting machines M1 to M3.

The component group data 21 is data obtained by grouping a master component and an alternative component that can be mounted on a common mounting position, and includes a “master component ID” 21a and an “alternative component ID” 21b which are combined with each other. The master component refers to a primary component provided as a mounting target to be mounted in one mounting position. The alternative component refers to a component that has the same electrical characteristics as those of the master component and can be mounted as an alternative to the master component. In general, the master component is preferentially used at a production site, and the alternative component is used in an emergency situation when the master component is not in stock. In the present specification, a case where the component is simply referred to as the “component” refers to the “master component”.