用生成式界面解决二手平台无障碍难题
Generative UI as an Accessibility Bridge: Lessons from C2C E-Commerce
- 在用户生成内容场景中动态生成适配界面
- 三类干预使视障/老用户交易成功率提升
- 适合关注无障碍设计与AI交互的研究者
网页无障碍依赖静态标准和开发者遵守，但在用户生成内容的平台中，该模式难以维持：图片模糊或裁剪不当，描述遗漏尺寸与状态信息，页面结构在不同商品间频繁变化。基于2022至2025年间对盲人、低视力及老年用户在客户对客户（C2C）电商平台的六项研究，本文提出生成式用户界面可在使用时实时生成适配界面，弥补静态设计无法预见的障碍。三项干预措施——为屏幕阅读器重生成HTML、面向老年卖家的对话式引导、面向盲人卖家的语音引导照片构图——证明运行时生成能填补标准留下的空白。研究指出其对人机交互实践的意义：生成式界面超越屏幕边界，补充而非替代能力导向设计，并将设计师角色从布局制定转向策略定义。此版本为发表于CHI 2026研讨会《生成式界面对人机交互实践意味着什么？》的立场论文扩展版。
原文摘要 · Abstract (English)
Web accessibility rests on static standards and developer compliance. That model frays in platforms where content is user-generated: photos arrive blurry or off-frame, descriptions skip size and condition, and page structure shifts from listing to listing. Drawing on six studies conducted between 2022 and 2025 with blind, low-vision, and older adult users of customer-to-customer (C2C) marketplaces, I argue that generative UI can produce adapted interfaces at the point of use, addressing barriers that static design cannot anticipate. Three interventions from this program -- HTML regeneration for screen readers, conversational guidance for older sellers, and audio-guided photo framing for blind sellers -- demonstrate how runtime generation can bridge gaps that standards leave open. I outline what these findings imply for HCI practice: generative UI extends beyond the screen, complements rather than replaces ability-based design, and shifts the designer's role from specifying layouts to specifying policies. This is an expanded arXiv version of a position paper accepted at the CHI 2026 workshop "What does Generative UI mean for HCI Practice?"
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