Abstract: An optimization system includes: a customer touring acquisition unit that is configured to be able to acquire touring of stores by a customer; a store attribute information acquisition unit that is configured to be able to acquire one or more items of store attribute information for classifying features of the stores; a model training unit that creates a correlation model for the touring by the customer and the store attribute information by using the touring of the stores by the customer and the store attribute information as inputs; and a trained model storage unit that stores the created model, in which information regarding one or more stores to be opened is presented in such a way as to increase the touring of the stores by the customer based on the model.

Abstract: A maintenance plan assistance system 100 configured to include: holding, in a storage device 101, remaining life information relating to devices covered by a maintenance plan, and a list of maintenance menus; and a computation device 104 identifying a maintenance effect when each maintenance menu is applied to each of the devices based on the maintenance menus and temporal changes in failure probabilities of each of the devices indicated by the remaining life information, identifying a variable range of a condition-based maintenance implementation timing, the variable range being dependent on the maintenance effect, and determining a maintenance menu including the variable range for a predetermined maintenance timing, and outputting, to a predetermined device, information including the maintenance menu identified by the determination and the condition-based maintenance implementation timing changed to the predetermined maintenance timing.