A method for migrating between first and second service enablers in an open service architecture includes registering a second service enabler within open service architecture framework. The properties of the registered second service enabler are compared with the properties of at least one of first...http://www.google.com.hk/patents/US20030061268?utm_source=gb-gplus-share專利 US20030061268 - Migration support mechanism in open service and open mobile architecture
