Usability of browser-based pen-touch/speech user interfaces for form-based applications in mobile environment

Abstract

This paper describes a speech interface system for the information retrieval services on the WWW and the experimental result of a usability evaluation for the form-based information retrieval tasks. We have presented a general speech interface system which can be basically applied to many menu-based information retrieval services on the WWW. The system enables additional speech input capability for a general WWW browser. A usability evaluation experiment of the speech enabled system for several existing menu-based information retrieval services is conducted and the results are compared with the case of a conventional system with pen-touch input mode. We also investigated the difference in the effect of usability for different operating conditions.