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ror User Account Control Apple User Group Connection Toolkits for user innovation Lazy user model Acorn User Z User Group User activity monitoring User intent Attentive user interface User-subjective approach Unique user Atari ST User User–network interface User-Mode Driver Framework User-defined function Journal of Organizational and End User Computing User environment management Multi-user MIMO Principles of user interface design Concurrent user Windows USER Persona (user experience) Lead user Console user interface Web User Natural-language user interface Linux User and Developer History of the graphical user interface First-time user experience End-user computing Multi-user dungeon Average revenue per user Browser user inter