<p>A computer (100) executes an administration process on operation subject information which is stored in a storage device. In the computer (100), an operation quantity detection unit (153) detects an operation quantity for the operation subject information. An operation quantity change sensing unit (154) senses a change in the operation quantity which the operation quantity detection unit (153) has detected. An administration processing unit (155) carries out an administration process on the basis of the result of the sensing by the operation quantity change sensing unit (154).</p>
