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d user interface Z User Group User-subjective approach Atari ST User Attentive user interface User interface modeling User-defined function Unique user Principles of user interface design User environment management Windows USER Persona (user experience) Console user interface User activity monitoring First-time user experience Linux User and Developer History of the graphical user interface Multi-user dungeon Web User Multi-user MIMO Lead user Natural-language user interface Concurrent user Average revenue per user Reference and User Services Quarterly MPEG user data End-user computing Browser user interface List of graphical user interface elements User-Managed Access Vector-based graphical user interface Questionnaire for User Inter