A notification indicating that a device, service, or area is currently non-functional and unavailable for use. These notices are often displayed to prevent individuals from attempting to use malfunctioning equipment and to inform them of the situation. For example, a sign placed on a broken elevator door or a malfunctioning vending machine would alert users to its unavailability.
These visual aids provide clear communication, preventing frustration and potential misuse of broken items. Historically, handwritten notes or makeshift signs were common, but readily available templates allow for professional and consistent messaging. This contributes to safety, minimizes wasted effort, and promotes a more organized environment.
The following sections will explore the various design considerations, appropriate placement strategies, and the impact of these notices on user experience within different settings.
