DATABASE SYSTEM

摘要

Provided is a technique which can accurately identify an element constituting information.  A database system includes: a model storage unit (116) for storing model information; a structurizing unit (112) which decomposes input information into a plurality of elements according to the model information and adds item information to each of the elements so as to generate related information which correlates the plurality of elements; and a model update unit (116) which updates the model information in accordance with one or more elements constituting the input information for update and having an addition state of a predetermined identifier in a predetermined state, and item information relating to the one or more elements.