Interacting with Computers
Undo for mobile phones: does your mobile phone need an undo key? do you?
Proceedings of the 5th Nordic conference on Human-computer interaction: building bridges
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This paper presents the results of a user study we performed to investigate users' appreciation of undo for email, also called retract, and their perception of the involved interactions and functionalities. A Computer Assisted Web Interview (CAWI) has been conducted on a large set of email users and the results indicate that there is little knowledge of the possibility of retracting email messages even if current implementations meet user requirements. The results get significance from the fact that a large part of respondents declared to read their own messages also after having sent them, looking for possible mistakes.