Integrating interactive applications with digital signage: Towards a scheduling framework for pervasive displays

Today's digital signage systems typically show content that has been scheduled well in advance by their respective owners. However, we envision that displays in our environment will soon be able to dynamically adapt to their surroundings and allow viewers as well as display owners to appropriate them by actively selecting and contributing content through interactive public display applications. Such multi-user and multi-application display environments require new forms of application and content scheduling that go beyond a predefined sequence of content. In this paper we present a scheduling framework for public displays, adapted from general scheduling theory, as a common notation that can be used to describe different application and content presentation requirements posed by both display owners and display viewers and define the overall behavior of public displays.