Information processing device and information processing method

An information processing device, comprising:

• a calculation part, calculating a production index representing quality of a product based on data acquired from a production device that produces the product using a member of at least one of a material and a component;
• a generation part, generating a model curve of a model showing a relationship between cumulative production quantity of the product and the production index based on the production index obtained by the calculation part in a plurality of the maintenance cycles of the member;
• a setting part, setting a threshold based on the model curve, each maintenance cycle is classified into a first section and a second section based on the threshold;
• a determination part, determining, based on the threshold that is set based on the model the model curve, whether the production index belongs to either the first section or the second section contained in one maintenance cycle of the member, wherein a change in the production index is larger in the second section than in the first section;
• and
• an execution part, executing at least one of first processing in which the production index determined to belong to the first section and the model curve are used and second processing in which the production index determined belong to the second section and the model curve are used, wherein the execution part predicts a remaining production quantity that is produced by the member based on the model curve in the second section as the second processing.