Provided is an information processing device which extracts a means which reduces a manufacturing time pertaining to a machining pre-step, a machining step, and a machining post-step in manufacturing artifacts by means of a control device, the information processing device comprising: a storage unit which stores machining-related information related to the machining of a workpiece and includes a machining program; a manufacturing time estimation unit which estimates at least one work step from the machining-related information stored in the storage unit and calculates the manufacturing time necessary for the machining of a workpiece by calculating the time taken for the estimated work step; and a reducing means determination unit which selects, from among a plurality of means pre-stored in the storage unit, a means for reducing the time for the at least one work step estimated by the manufacturing time estimation unit.

An NC device includes a character information storage unit configured to store at least one piece of machining management data entered on a character information input screen. The machining management data includes an order number represented by a character string corresponding to a desired machining order, and a control flag that is set and updated based on the machining status of a workpiece according to the machining order. A server device includes: a scanning unit configured to periodically scan the machining management data retained in the character information storage unit, and to determine, based on the value of the control flag, the start and end of machining of the workpiece; and an analysis unit configured to analyze, in response to determination of the end of the machining by the scanning unit, machining performance according to the machining order by referring to operation history data associated with the order number.