Second ISCA/DEGA Tutorial and Research Workshop on Perceptual Quality of Systems

Berlin, Germany
September 4-6, 2006

The Relationship Between User Errors and Perceived Usability of a Spoken Dialogue System

Antti Oulasvirta (1), Klaus-Peter Engelbrecht (2), Anthony Jameson (2), Sebastian Möller (1)

(1) Deutsche Telekom Laboratories, TU Berlin, Germany
(2) DFKI, Saarbrücken, Germany

An experiment (N=24) was conducted with a spoken dialogue system (a smart home system), in which the users carried out several tasks with the system and rated its usability. Users’ interactions were analyzed from the perspective of human error research done in human factors and cognitive ergonomics, distinguishing between goal-, concept-, task-, and command-level errors. This paper raises the question of how the interrelationship between errors and usability perceptions should be studied. Preliminary results are presented from correlational and factor-analytical approaches.

Full Paper

Bibliographic reference.  Oulasvirta, Antti / Engelbrecht, Klaus-Peter / Jameson, Anthony / Möller, Sebastian (2006): "The relationship between user errors and perceived usability of a spoken dialogue system", In PQS-2006, 61-67.