Abstract
This work explores the relationship between Face Threatening Acts (FTAs) commonly performed by the computer (in the form of interruptions) while interacting with users. It investigates the effects that these acts have upon the user's satisfaction. An experiment proved a hypothesis: FTAs performed by a computer interface have a detrimental effect upon the user perception of the interaction with the computer. This effect is observed on the user perception of the interaction as being less friendly, less motivating and less cooperative. It was also found that politeness strategies had no effect on minimizing the perception of a FTA.
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