One implementation provides a method for analyzing the validity of a proposed change to an electronic entity. The heating circuit includes at least one heating resistor in series to switch means controlled by an appliance control unit for selectively energizing the heating resistor when required. This disclosure enables assembling windsurfing boards of different sizes and different types. The side panels are each secured to the first and second end panels and are extensible in at least the lateral direction of the garment. The blind system identification is applied in each of the subapertures to obtain the first-level response to each element. The sensing device mounting mechanism comprises a housing portion having a snapping mechanism.