Four easy pieces for assessing the usability of multimodal interaction: the CARE properties.

Joëlle Coutaz Laurence Nigay Daniel Salber Ann Blandford Jon May Richard M. Young Four easy pieces for assessing the usability of multimodal interaction: the CARE properties. 115-120 1995 conf/interact/1995 INTERACT db/conf/interact/interact1995.html#CoutazNSBMY95