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Notes
- 1.
Note that the concept of modeling a system is not to reverse engineer it, but to provide an efficient method to describe design concepts. Thus, the fact that modeling the system is not suitable for this study does not invalidate the concepts behind the MeMo workbench.
- 2.
Unfortunately, to keep the simulated behavior consistent, one extra rule had to be added to the algorithm which pushes the changed AVP back to the agenda if the system asks for the attribute name. Interestingly, a real user would notice when the system asks for a field after offering to modify the task, that the named AVP has not been understood, although this is not explicitly coded in the dialog acts of the system.
- 3.
The final list of usability problems can be found in Appendix A.
- 4.
In the real experiment, 40 users did five trials each. As we did not simulate learning, in out simulation this is the same as having 200 independent users.
- 5.
Translation from German by the author.
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© 2013 Springer-Verlag Berlin Heidelberg
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Engelbrecht, KP. (2013). Detection of Usability Problems Using an Ad-Hoc User Simulation. In: Estimating Spoken Dialog System Quality with User Models. T-Labs Series in Telecommunication Services. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31591-6_4
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DOI: https://doi.org/10.1007/978-3-642-31591-6_4
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