Computers Are Social Actors (CASA)
由 Nass 等人于 1994 年提出的 HCI 范式，认为人会无意识地像对待真人一样对计算机施加社会规则与期待。
English Definition
"A paradigm (Nass, Steuer & Tauber, 1994) positing that people mindlessly apply social rules, expectations, and behaviors to computers and other media as if they were human interactants."
用法说明 · 针对中文母语者
CASA 提醒设计师：只要系统具备任何社会性线索（性别化的声音、自信的语气），就会触发用户的社会反应。设计拟人化或对话式系统时必须意识到这一点。
常见错误
- ·与 Reeves & Nass 的 Media Equation（媒介等同论）混淆——二者其实同源，是同一传统的不同表述
- ·误以为 CASA 只适用于聊天机器人——对所有具备社会线索的 UI 都成立
真实用例 · 3 条
"Computers Are Social Actors (CASA) is another popular paradigm explaining human interactions based on the dialogue partner and medium perspectives (Nass et al., 1994)"
"According to CASA, people treat computers as if they were human beings capable of social interaction and apply a strategy of human–human interactions and collaborations when interacting with them"
"the essence of a computer as a social actor is creating the relationship, which establishes the social norms, invokes social rules and dynamics, and provides social support or sanction"