Method and device for parts management

A parts management device that manages parts used to produce an assembly product, the device comprising:

• a parts-configuration-information storage unit that stores assembly-product identification information identifying an assembly product, parts identification information identifying parts used to produce the assembly product, and number of the parts, by relating these pieces of information to each other, as parts constitution information;
• a parts-container-information storage unit that stores parts identification information of parts accommodated in a parts container and number of the parts, by relating these pieces information to parts-container identification information identifying a parts container, as parts container information, for each parts container;
• a used-parts-information reading unit that reads parts identification information and number of parts corresponding to an assembly product of which production is started, as used-parts identification information and a used number, from the parts-configuration-information storage unit;
• and
• a number-of-parts updating unit that reads parts container information of a parts container accommodating parts used for an assembly product of which production is started, from the parts-container-information storage unit, and writes into the parts-container-information storage unit, parts container information updated by using a new number of parts obtained by subtracting the number of used parts from number of parts identified by used-parts identification information read by the used-parts-information reading unit.