Digital content is the core of digital advertising signage, which managed via display control software. Digital signage could be a stand-alone dedicated program or integrated with hardware. New messages can be created from an inventory of audio, video, image, graphics, words and phrases which are assembled in different combinations and permutations to yield new messages in real-time. Digital content displayed on the signage is presented in one of the following formats: Text - Scrolling text. Images - Scrolling images, usually in the format of digital advertisement posters Video - many display control systems use canned graphics and video, however, custom video can be self-generated or contracted by many sources. Context-aware interfaces - Integration of signage with cameras, sensors and software to monitor the ambient environment and audience, allowing signage to be updated according to the audience profile, weather conditions or some other relevant external factor.