An Experimental Analysis of Undo in Ubiquitous Computing Environments

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An Experimental Analysis of Undo in Ubiquitous Computing Environments Marco Loregian, Marco P. Locatelli University of Milano-Bicocca (Italy)
Outline • Problem • Experiment • Results • Ongoing and future work • Conclusion
Undo • Well known function of PC applications • Allows to revert (the effects of) commands • Applied to user actions • Different strategies
What does “undo” mean in ubicomp environments?
The problem • We need to know it in order to design usable (successful) systems • How should we ﬁnd it out? • Undo is a user intention • We surveyed potential users
The experiment • Introduction of the problem with a video- scenario • Multi-part survey