Abstract

Rotational dynamic system models can be used to enrich tightly-coupled embodied control of movement-sensitive mobile devices, and support a more bidirectional, negotiated style of interaction. This can provide a constructive, as well as informative, approach to the design of engaging, playful elements in interaction mechanisms. A simulated rotational spring system is used for natural eyes-free feedback in both the audio and haptic channels, and in a Mobile Spatial Interaction application, using twisting and tilting motions to drag and drop content, where users perceived the effect of varying the parameters of the simulated dynamic system.