Thus spoke the user to the wizard
Hannes Pirker, Georg Loderer, Harald Trost · 1999
Wizard-of-Oz (WOZ) simulations are a popular means for investigating the properties of human-computer interaction. In this paper the findings from a WOZ experiment for evaluating different design options for a spoken dialogue system are presented. In addition to the documentation of the outcomes of this evaluation in terms of standard quantitative measures we also present findings from a more qualitative analysis of the speech data collected throughout this experiment. It is argued that such a combined analysis of all aspects of the human-computer interaction allows for a correct interpretation of the results and their fruitful application in the context of system prototyping. 1 INTRODUCTION Dialogues in human computer interaction may vary significantly from dialogues in natural conversations. Wizardof -Oz (WOZ) simulations are a popular framework for investigating peculiarities of this interaction in general and for the development and evaluation of designs for spoken dialog system...