Abstract: A plurality of users of mobile terminal device connected to a first wireless communication network with one master terminal device and the remaining mobile terminal devices acting as slave terminal devices, the master connected to a service provider via a second communication network, wherein the following steps are carried out: distributing instructional tasks from the master to the slave terminal devices via the first network, receiving responses responsive to the instructional tasks by the users, transmitting the responses from the slave devices to the master device via the first network, transmitting the responses from the master to the service provider via the second network, processing the responses and generating an evaluation for each of the responses by the service provider, and transmitting the evaluations from the service provider to the master device via the second network.