Abstract: A business-supporting server supports a client. A request-obtaining unit obtains key request information showing requests of the client, who is provided with a business of the business-supporting organization. A business contents database has each of business contents information of a plurality of business functions. An adaptive function-selecting unit selects the business functions, which adapt to the requests of the client, by evaluating adaptability of the business contents information to the key request information based on the key request information and the business contents database. A function presentation-processing unit presents the information of the selected business functions to the clients. Therefore, functions of a business supporter such as a general trading company may be appropriately provided on the Web.