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er Group Connection Acorn User Toolkits for user innovation Lazy user model Z User Group User activity monitoring User intent Attentive user interface Unique user User-subjective approach Atari ST User User–network interface User-Mode Driver Framework User-defined function Journal of Organizational and End User Computing User environment management Principles of user interface design Multi-user MIMO Concurrent user Lead user Windows USER Persona (user experience) Console user interface Web User Natural-language user interface Linux User and Developer History of the graphical user interface First-time user experience Multi-user dungeon End-user