Low-fidelity paper prototyping has proven to be a useful technique for designing for graphical user interfaces [1]. Wizard of Oz prototyping for other input modalities, such as speech, is also becoming more common [2]. Yet to surface are guidelines for low-fidelity prototyping of multimodal applications, those that use multiple and sometimes simultaneous combination of different input types. This paper describes our recent research in low fidelity, multimodal, paper prototyping and suggests guidelines to be used by future designers of multimodal applications. Keywords Multimodal, prototyping, low-fidelity, informal user interfaces, design methodologies, Wizard of Oz, multidevice
Corey D. Chandler, Gloria Lo, Anoop K. Sinha