Since icons for identifying the contents of orders received or orders placed and the numbers of data representing the processing a status of the orders received or orders placed are displayed in combination to manage orders received and orders placed for parts, the processing status such as orders expected to be received, determination of orders, delay in scheduling, acceptance, and the like in the shop can be visually and quickly checked. Detailed information associated with the orders expected to be received, determination of orders, delay in scheduling, and the like is visually presented as a graph and table which correspond to the parts management items identified by icons. Progress in order received/placed processing can be reviewed on day-to-day basis, and comparison of a plurality of managed items can be made, thus realizing versatile parts management. The parts management by means of a display using common icons for identifying the management units of orders received and orders placed can easily determine the correspondence between the processing a status of the overall shop and detailed information in units of parts, thus allowing easy and accurate order received/placed management.