The present invention relates to a business model creation supporting method which proposes a new business model. A calculator: receives first and second business models; with respect to a plurality of business models, adds first and second activities, which are respectively executed in the first and second business models, to first information in which tasks respectively executed in the business models are predefined as activities; adds relationships between the first and second activities and the first and second items used at the time of executing the first and second activities, to second information in which a relationship between an activity and a data item used at the time of executing the activity is predefined; and searches the second information to acquire a third activity including both the first data item and the second data item.
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