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nt User-Mode Driver Framework Unique user Object-oriented user interface Z User Group Apple User Group Connection User–network interface User-subjective approach Attentive user interface User interface modeling Atari ST User User-defined function Journal of Organizational and End User Computing User activity monitoring User environment management Lead user First-time user experience Windows USER Console user interface Persona (user experience) Principles of user interface design Multi-user MIMO Web User Linux User and Developer History of the graphical user interface Multi-user dungeon Natural-language user interface Concurrent user Vector-based graphical user inter