Building the Habit of Authoring Alt Text: Design for Making a Change.

Alternative (alt) text is essential for the accessibility of images to screen reader users. Alt text can be authored by end users or generated automatically using machine learning. Automated methods, while fast and cheap, do not result in high quality alt text. Meanwhile, the large number of images with no alt text on social media indicates that many users do not author alt text for the images they upload. Little is known about whether design elements that motivate and support users are integrated into alt text user interfaces (UIs). We reviewed the current state of alt text UIs in literature, and characterized their design according to behavior change and accountability design factors. We found that the majority of reviewed UIs contained general prompts with no specific motivator or guidance. Many of the UIs did not incorporate design elements to encourage accountability or behavior change. We recommend that future alt text authoring tools incorporate design elements which decrease the user's cognitive effort, employ motivational and well-timed triggers, and leverage user accountability through alt text visibility and its association with the user's social presence. [ABSTRACT FROM AUTHOR]

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