The invention relates to a client independent method for defining a graphical user interface (GUI) for a client device, the method comprising the steps of determining a dedicated display area of a display screen of the client device where the GUI is to be provided, defining a plurality of sub-regions of the display area, the size and location of each sub-region being allocated according to a predetermined pattern, assigning an application service for each of the sub-regions, providing each of the application services to its respective sub-region; and rendering the GUI within the dedicated display area of the display screen, thereby allowing a user of the client device to interact with the application services. The invention also relates to a client device adapted provide an interactive GUI to a user of the client device.