PapAR

Paper prototyping is a well-established technique in traditional user interface design as it supports design teams in early development phases to communicate and discuss their ideas. Unfortunately, there is no equivalent technique for the development of augmented reality (AR) applications. We developed PapAR, a prototyping technique with the same simplicity as using pen and paper but taking into account important specifics of AR applications. By drawing on two layers instead of one, with PapAR it is possible to represent the dynamic behavior of different content stabilization techniques as well as the interplay of virtual content and the underlying real world (Fig. 1). We used PapAR in the early design phase of a user interface, which is specifically designed to be displayed in a head-mounted display (HMD) in the car. In this paper we first present the PapAR technique itself and then discuss our first experiences of using it.