Effects of using speech in timetable information systems for WWW
Pernilla Qvarfordt, Arne Jönsson · 1998
Design of information systems where spatial and temporal information is merged and can be accessed using various modalities requires careful examination on how to combine the communication modalities to achieve efficient interaction. In this paper we present ongoing work on designing a multimodal interface with timetable information for local buses where the same database information can be accessed by different user categories with various information needs. The prototype interface was evaluated to investigate how speech contributes to the interaction. The results showed that the subjects used a more optimal sequence of actions when using speech, and did fewer errors. We also present suggestions for future design of multimodal interfaces. 1. INTRODUCTION A recent development in interactive systems is to combine WWW-interaction with speech (e.g. WebGalaxy [8]). Our aim is to develop such a multimodal dialogue system. The application domain for our study is local bus timetable informa...