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Summary: Comparative Visualization of User Flows
in Voice Portals
Bjšorn Zimmer1
, Dennie Ackermann1
, Manfred Schršoder2
,
Andreas Kerren3
, and Volker Ahlers1,
1
University of Applied Sciences and Arts Hannover, Faculty IV,
Dept. of Computer Science, P. O. Box 920251, 30441 Hannover, Germany
2
HFN Medien GmbH, Ehlbeek 3, 30938 Burgwedel, Germany
3
Linnæus University, School of Computer Science, Physics and Mathematics,
Vejdes Plats 7, 35195 Všaxjšo, Sweden
1 Introduction
Voice portals are widely used to guide users interactively through an application.
Recent portals provide a growing number of functions in one application, thus
increasing their complexity. This work presents flow-map-based techniques for
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