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Driver Framework User-subjective approach Object-oriented user interface Journal of Organizational and End User Computing Z User Group User intent Atari ST User User-defined function User interface modeling Attentive user interface User environment management Principles of user interface design Unique user Persona (user experience) User activity monitoring Windows USER Console user interface First-time user experience Linux User and Developer Multi-user dungeon Web User History of the graphical user interface Lead user Multi-user MIMO Natural-language user interface Average revenue per user Concurrent user Reference and User Services Quarterly Browser u