Challenges in Personalized Multi-user Interaction at Large Display Walls

Abstract

Computing devices such as desktop PCs and mobile phones assume a single user at the interface and present an interface personalized to this individual. In the case of large interactive display walls, simultaneous interaction by multiple users becomes possible and consequently, the system needs to adapt to each user at a more fine-grained level. This paper considers the challenges that follow and examines proposed solutions. We first look at requirements for a system that technically identifies the different users and compare existing systems to these requirements. Second, we discuss how to adapt the interface to multiple, possibly collaborating, users: How do we display personal or private data? How do we adapt to users that move around? In a collaborative environment, there is often a need for personal views of data in addition to a shared view. We consider both lens-based user interfaces and the use of additional personal mobile devices as mechanisms for enabling personalized interfaces.