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er–network interface User-subjective approach User-Mode Driver Framework Atari ST User Journal of Organizational and End User Computing User-defined function Principles of user interface design User environment management Multi-user MIMO Concurrent user Windows USER Persona (user experience) Lead user Web User Console user interface Natural-language user interface Linux User and Developer History of the graphical user interface First-time user experience Multi-user dungeon End-user computing MPEG user data Average revenue per user Vector-based graphical user interface Browser user interface Questionnaire for User Interaction Satisfaction Reference and User Services Quarterly User (ancient