A method of monitoring objects in a database system. A client program requests monitoring of an attribute of an object in the database according to a criterion which is any of four tuning parameters. The parameters include a change value parameter, a delay time parameter, a synchronous initiation parameter,...http://www.google.ca/patents/US5471629?utm_source=gb-gplus-sharePatent US5471629 - Method of monitoring changes in an object-oriented database with tuned monitors
