Quality of Experience and Interactivity

Abstract

This chapter discusses the relation between interactivity and QoE. In this context, a definition of interactivity comprising human-to-human interaction as well as human-to-machine interaction is presented, and a description of a possible instrumentation is given. In terms of quality formation, a mediation layer between quality influence factors and perceived quality features is introduced that allows the inclusion of interactivity-related perception in the quality formation process. A discussion of commonalities and differences between interaction with a system and interaction with one or several other persons via a system identifies the open challenges for reliable and successful measurement of interactivity related aspects and the identification of relationships between these interaction measures and QoE.