Abstract: An electronic device connects to a cloud server. The cloud server stores information of a first worker and a second worker. The second worker does work handover with the first worker. When it is time to do work handover by the second worker, the second worker uses the electronic device to touch the electronic device of the first worker. The information of the second worker of the electronic device is compared with the information of the second worker stored in the cloud server. When the information of the electronic device is the same as the information stored in the cloud server, a display device connected to the cloud server displays job contents stored in the cloud server.