An information modeling method receives various kinds of data; analyzes the data into semantic elements, that is, temporal information data including temporal information, spatial information data including spatial information indicating locations, object information data including object information which is an object of the function of data other than the temporal information data and the spatial information data and which interacts with the other data, and thing information data including the remaining thing information other than the temporal information, the spatial information and the object information; and establishes a database which is composed of an action including at least one among the temporal information data, spatial information data, object information data and thing information data, a module which is a higher group of the action, and a situation which is a higher group of the module, using the analyzed data. In a search system constructed according to this information modeling method, information input by user is connected to a database and is analyzed into semantic elements such as time, space, situation name and keyword. Then, the database is searched for actions, modules and situations including the semantic elements so that the information requested by the user can be extracted. |