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ser Friendly User requirements document Intelligent user interface User interface markup language Fast user switching Text-based user interface User space and kernel space User interface management system Amstrad Computer User IBM Common User Access Natural user interface Active users User model User error End-user license agreement Adaptive user interface Closed user group Acorn User User intent User Account Control Toolkits for user innovation Apple User Group Connection Object-oriented user interface Unique user User-Mode Driver Framework Lazy use

r model Z User Group User interface modeling Attentive user interface User–network interface User-subjective approach Atari ST User Journal of Organizational and End User Computing User activity monitoring User-defined function Console user interface Lead user First-time user experience User environment management Principles of user interface design Persona (user experience) Web User Windows USER Multi-user MIMO Linux User and Developer History of the graphical user interface Concurrent user Natural-language user interface Multi-user dungeon Vector-based graphical user interface MPEG user data End-user computing Browser user interface List of graphical u