Scenario (computing)
（重定向自User scenario）
In computing, a scenario (UK /sɪˈnɑːrioʊ/, US /sᵻˈnɛərioʊ/; from Italian: that which is pinned to the scenery; pronounced [ʃeˈnaːrjo]) is a narrative of foreseeable interactions of user roles (known in the Unified Modeling Language as 'actors') and the technical system, which usually includes computer hardware and software.