One of the open questions in the field of interaction design is "what inputs or interaction techniques should be used with augmented reality devices?" The transition from a touchpad and a keyboard to a multi-touch device was relatively small. The transition from a multi-touch device to an HMD with no controllers or clear surface to interact with is more complicated. This book is a guide for how to figure out what interaction techniques and modalities people prefer when interacting with those devices. The name of the technique covered here is Elicitation. Elicitation is a form of participatory design, meaning design with direct end-user involvement. By running an elicitation study researchers can observe unconstrained human interactions with emerging technologies to help guide input design.

翻译：互动设计领域的开放问题之一是“什么投入或互动技术应该用增强的现实装置来使用?” 从触摸板和键盘向多触摸装置的过渡相对较小。从多触摸装置向没有控制器或清晰表面可以互动的HMD的过渡更为复杂。这本书指导人们在与这些装置互动时如何了解互动技术和模式。这里所覆盖的技术的名称是Eliucation。Eliucation是一种参与性设计形式,意思是设计,直接让最终用户参与。通过进行引证研究,研究人员可以观察人类与新兴技术的不受限制的相互作用,以帮助指导输入设计。