A rotary joint or swivel device for ensuring a continuous connection between two items that rotates with respect to each other, for example between an instrumentation unit on a fixed installation and sensor elements in a cable on a rotating cable reel or drum, is provided. A set of seed words can be identified and expanded using synonyms and antonyms of the set of seed words. , a remote control device, has a pressure-sensitive touch screen arranged over a display monitor. Within an application server, preceding the application service execution step, an only-once determination step is suggested, for determining whether an application service request must not be executed more than once without jeopardizing application consistency.