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Optimizing a Mobile User Flow with Forcing Functions: A Strategy to Minimize Human Error in Automatic Body Sizing Systems.

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Title: Optimizing a Mobile User Flow with Forcing Functions: A Strategy to Minimize Human Error in Automatic Body Sizing Systems.
Authors: Kim, Hyunwook1,2 (AUTHOR), Kim, Seowoo1,2 (AUTHOR), Lee, So-Hyun1,2 (AUTHOR), Park, Juyeon1,2,3 (AUTHOR) juyeon.park@snu.ac.kr
Source: International Journal of Human-Computer Interaction. Nov2025, Vol. 41 Issue 22, p14110-14121. 12p.
Subjects: Human error, User-centered system design, User interfaces, Information needs, User experience
Abstract: This study developed a mobile user flow for automatic body sizing systems, integrating forcing functions to reduce human errors and enhance usability. In the preliminary stage, users examined existing applications, and identified critical design requirements highlighting challenges and opportunities for improvement. In the subsequent stage, an experiment was conducted to determine optimal photographic conditions, establishing ideal settings (3 m distance, 1 m height, and 0°–5° angle) to minimize image distortion. Using these conditions, a mobile user flow was designed, incorporating three types of forcing functions (interlocks, lock-ins, and lockouts), along with visual and auditory cues such as a guide silhouette and countdown timer. Usability improved significantly compared to existing applications, as evidenced by increased emotional ratings at p < 0.05. This study underscores the effectiveness of the human-centered design approach in developing a mobile user flow that facilitates a seamless photographic process and ensures accurate outcomes in automatic body sizing systems. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Human-Computer Interaction is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: This study developed a mobile user flow for automatic body sizing systems, integrating forcing functions to reduce human errors and enhance usability. In the preliminary stage, users examined existing applications, and identified critical design requirements highlighting challenges and opportunities for improvement. In the subsequent stage, an experiment was conducted to determine optimal photographic conditions, establishing ideal settings (3 m distance, 1 m height, and 0&#176;–5&#176; angle) to minimize image distortion. Using these conditions, a mobile user flow was designed, incorporating three types of forcing functions (interlocks, lock-ins, and lockouts), along with visual and auditory cues such as a guide silhouette and countdown timer. Usability improved significantly compared to existing applications, as evidenced by increased emotional ratings at p &lt; 0.05. This study underscores the effectiveness of the human-centered design approach in developing a mobile user flow that facilitates a seamless photographic process and ensures accurate outcomes in automatic body sizing systems. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of International Journal of Human-Computer Interaction is the property of Taylor &amp; Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1080/10447318.2025.2480893
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      – SubjectFull: User-centered system design
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      – SubjectFull: User interfaces
        Type: general
      – SubjectFull: Information needs
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      – SubjectFull: User experience
        Type: general
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      – TitleFull: Optimizing a Mobile User Flow with Forcing Functions: A Strategy to Minimize Human Error in Automatic Body Sizing Systems.
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            NameFull: Kim, Hyunwook
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            NameFull: Kim, Seowoo
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            NameFull: Lee, So-Hyun
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              Text: Nov2025
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