incidental user
偶然用户，指那些不同程度地受到系统影响、甚至会与之直接交互，却常被系统设计者和服务提供者忽略的人群。
English Definition
"People who are affected by a system to varying degrees and may directly interact with it, but who are often overlooked by system designers and service providers."
用法说明 · 针对中文母语者
服务设计与普适计算语境下的关键概念；中文常译为「偶然用户」或「附带用户」。该术语源于 HCI/服务设计研究，强调非目标用户的存在与体验。
常见错误
- ·误译为「临时用户」——更准确含义是「被卷入系统但非目标用户的人」
- ·与 bystander（旁观者）混用——bystander 强调被动在场，incidental user 仍可能主动交互
真实用例 · 3 条
"The term 'incidental users' was used to describe those people who are affected to various degrees by systems and by those who directly interact with them, but who are often neglected by system designers and service providers."
"The incidental user phenomenon was described as related mainly to the context of people receiving services."
"Children sitting in the backseat for example could be shown information (possibly in the form of a game) about the time and distance to the final destination or the next stop."