When a first service providing device and a second service providing device located on a network have a dependent relationship, services can be disclosed and provided, with the dependent relationship held. A service utilizing device inquires of a service disclosing device regarding available services....http://www.google.fr/patents/US7376746?utm_source=gb-gplus-shareBrevet US7376746 - Method and program for disclosing and providing services on network
Method and program for disclosing and providing services on network