Patent ID: 7860979

Claim:
Data transmission process for transmission of data sets between at least one query data server, at least one display data server and at least one client comprising the steps of: upon initiation of a data transmission process by a user of the at least one client using a browser without a backward channel, automatically recognizing with a control mechanism on the at least one query data server that the data transmission process to be started requires use of a browser with a backward channel; causing a browser with the backward channel to be started on the at least one client and using the browser with the backward channel for the data transmission process, the data transmission process comprising the steps of: maintaining a display data set on the at least one display data server and making the display data set accessible to the at least one client via an online connection which has been set up at least temporarily from the at least one client to the at least one display data server, automatically retrieving and transmitting the display data set from the at least one display data server to the at least one client via the online connection which has been set up at least temporarily, and displaying the retrieved display data set at the at least one client for viewing by the user in a first display window, initiating of a query process by an input from the user in a second display window, and in response to said input, at least partially overlapping in time with displaying of the display data set retrieved from the at least one display data server in said first display window, based on a query data set which is different from the display data set, automatically sending from the at least one query data server to the user of the at least one client, an input request for inputting of response data from the at least one client, wherein the input request is displayed in the second display window at least partially overlapping in time with retrieved data displayed in said first display window.