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s for user innovation Lazy user model User intent User-Mode Driver Framework Unique user Object-oriented user interface Z User Group Apple User Group Connection User–network interface Attentive user interface User interface modeling User-subjective approach Atari ST User Journal of Organizational and End User Computing User-defined function 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 Natural-language user interface Concurrent user Multi-user dungeon