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CHI
2004
ACM

If not now, when?: the effects of interruption at different moments within task execution

12 years 3 days ago
If not now, when?: the effects of interruption at different moments within task execution
User attention is a scarce resource, and users are susceptible to interruption overload. Systems do not reason about the effects of interrupting a user during a task sequence. In this study, we measure effects of interrupting a user at different moments within task execution in terms of task performance, emotional state, and social attribution. Task models were developed using event perception techniques, and the resulting models were used to identify interruption timings based on a user's predicted cognitive load. Our results show that different interruption moments have different impacts on user emotional state and positive social attribution, and suggest that a system could enable a user to maintain a high level of awareness while mitigating the disruptive effects of interruption. We discuss implications of these results for the design of an attention manager. Categories & Subject Descriptors H.5.2 [Information Interfaces and Presentation]: User Interfaces -- evaluation/me...
Piotr D. Adamczyk, Brian P. Bailey
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2004
Where CHI
Authors Piotr D. Adamczyk, Brian P. Bailey
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