For an apparatus effectively providing a real three-dimensional model to a customer, three-dimensional shape data of a target is obtained at a data input section (10). The data is managed by a server which is connected to a network. A suitable formation section (14) is selected to form a real three-dimensional model based on the data. In addition, the formation completion is automatically notified to the customer via a completion display panel (260), a cellular phone (61), or the like.