User Requirements Analysis in the Context of Multimodal Applications for Blind Users

Abstract

The Contribution identifies three main problems and challenges in developing multimodal applications for blind people. Since blind users are insufficiently involved and developers normally not blind, their mental models are different. In order to cope with these problems the authors present a phase model for blind user-centred design process. Correlating blind user-centred methods are proposed: User analysis through telephone interviews and the reconstruction mental models by methods like teaching back and thinking aloud (Sasse 1991).