Information management system and information management method

An information management method executed by an information management system for supporting construction of an operation plan related to delivery of a cargo by using a computer including a processor and a memory, the information management method comprising:

• extracting an asset that is usable by a consignor from use status data indicating use status of assets of one or more asset owners that are used for delivering a cargo by an EV, based on the use status data and a delivery specification of a cargo to be delivered for the consignor;
• reading, for an asset owner of the extracted usable asset, an evaluation index of a concern that is important to the consignor when making an operation plan for the asset, from evaluation data for evaluating the asset owner and the asset owned by the asset owner;
• reading a score threshold for the evaluation index, which is determined according to a weight of the evaluation index, from policy data for determining an evaluation policy of an asset owner for each consignor;
• extracting an asset owner satisfying the read score threshold from the extracted use status data;
• and
• outputting the operation plan for the asset to be used by the consignor based on asset data indicating a state of an asset owned by the extracted asset owner.