The user interface control inputs, such as knobs, sliders, and push buttons, as well as output indicators, are located on the front panel and create items like charts, graphs, and image displays. The mouse or keyboard can be used to input data into the system. After energy (airborne or structure-borne) enters a panel, precautions must be taken to stop the energy from becoming noise. Prior to formulating design guidelines for front body panel, it is critical to define the fundamental physical processes through which noise is emitted by body panels.