The subject of the invention is a method for controlling the quality of a service (85) that includes at least one technical component (86) defined according to one of several possible technologies, the quality of service being defined by a technical contract (100) between the provider of the service...http://www.google.com.au/patents/US7370105?utm_source=gb-gplus-sharePatent US7370105 - Quality of service control, particularly for telecommunication