Molding management system and data management method

A data management method for a molding management system that includes an information processing device communicably connected to a terminal device and that manages production of a product in a production process including an injection molding process of the product performed by an injection molding apparatus, the data management method comprising:

• a cycle data acquisition step of acquiring, for each cycle of executing injection molding, cycle data including one or more pieces of cycle-related information obtained in response to execution of the cycle by the injection molding apparatus and first date-and-time information indicating a date and time when the cycle data is acquired from the injection molding apparatus;
• an injection molding condition data acquisition step of acquiring injection molding condition data including one or more pieces of injection molding condition information each indicating an injection molding condition set in the injection molding apparatus and second date-and-time information indicating a date and time when the injection molding condition data is acquired from the injection molding apparatus, every time the injection molding condition is set in the injection molding apparatus;
• and
• an output step of outputting, to another device, a combination of first cycle data among one or more pieces of the cycle data acquired by the cycle data acquisition step and first injection molding condition data associated with the first cycle data among one or more pieces of the injection molding condition data acquired by the injection molding condition data acquisition step.