Visual searches are also very important in warnings. Warnings need to stand out from their background. The warning must first be noticed, then read and understood. For example, a stick figure could be performing an ambiguous action and have an "X" through it. You therefore understand that while you are not supposed to perform some action, you do not understand what that action actually is.
Give two examples of a poor warning. Were the warnings understood? What difficulties came with the warnings? What features could be modified to make the warnings more effective?