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Interrupted by a phone call: exploring designs for lowering the impact of call notifications for smartphone users

Published: 26 April 2014 Publication History

Abstract

Mobile phones have evolved significantly in recent years from single-purpose communication devices to multi-purpose computing devices. Despite this evolution, the interaction model for how incoming calls are handled has barely changed. Current-generation smartphones still use abrupt full-screen notifications to alert users to incoming calls, demanding a decision to either accept or decline the call. These full-screen notifications forcibly interrupt whatever activity the user was already engaged in. This might be undesirable when the user's primary task was more important than the incoming call. This paper explores the design space for how smartphones can alert users to incoming calls. We consider designs that allow users to postpone calls and also to multiplex by way of a smaller partial-screen notification. These design alternatives were evaluated in both a small-scale controlled lab study as well as a large-scale naturalistic in-the-wild study. Results show that a multiplex design solution works best because it allows people to continue working on their primary task while being made aware that there is a caller on the line. The contribution of this work is an enhanced interaction design for handling phone calls, and an understanding of how people use it for handling incoming calls.

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    cover image ACM Conferences
    CHI '14: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
    April 2014
    4206 pages
    ISBN:9781450324731
    DOI:10.1145/2556288
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 26 April 2014

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    Author Tags

    1. app usage
    2. interruptions
    3. phone calls
    4. smartphones

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    April 26 - May 1, 2014
    Ontario, Toronto, Canada

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    CHI '14 Paper Acceptance Rate 465 of 2,043 submissions, 23%;
    Overall Acceptance Rate 6,199 of 26,314 submissions, 24%

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    • (2023)Challenges and Opportunities of Using Redirection of Activity for Self-Regulation OnlineProceedings of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544548.3581342(1-19)Online publication date: 19-Apr-2023
    • (2022)Can Previews Mitigate the Effect of Interruptions? Findings from a Lab Experiment under Various WorkloadsInternational Journal of Human–Computer Interaction10.1080/10447318.2022.213791540:4(956-964)Online publication date: 31-Oct-2022
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    • (2020)The Effect of Context on Small Screen and Wearable Device Users’ Performance - A Systematic ReviewACM Computing Surveys10.1145/338637053:3(1-44)Online publication date: 28-May-2020
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