Identification of user experience and usability dimensions for second screen applications: Results from an expert evaluation using generic task models

In this article we present a state of the art of current types of second screen approaches and a classification attempt based on the dimensions of users' perceived synchronization and perceived interactivity. Based on an analysis of twenty second screen apps available in France and Europe, we performed a general task analysis of second screen applications. Subsequently, an expert usability and user experience evaluation was performed by using paper prototypes, representing the general tasks identified in the task analysis when using second screen applications. Results show that presentation of information on two screens typically causes the user interface to be less efficient and effective, and that the higher the degree of interactivity, the less usable an UI is. In terms of user experience we have identified aesthetics, emotion, value/meaning and stimulation as well as social connectedness as key dimensions. Based on the general task analysis we present detailed results on which dimension of user experience is important for the different tasks and usage phases of second screen applications.