Visualization (Digital Signage) is a form of outdoor advertising in which content and messages are displayed on electronic screens with the aim of delivering a targeted message at a specific place and time. Digital signage offers a better return on investment than traditional advertising media. Digital signage elements can be LCD or plasma panels, electronic billboards, projection or other types of screens that can be controlled by a computer or other device, allowing a user or groups of users to remotely change and control content (usually over the Internet).