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nnovation User Account Control Lazy user model Active users User interface modeling Apple User Group Connection User-subjective approach User-Mode Driver Framework User-defined function Unique user User–network interface User activity monitoring Z User Group Attentive user interface Journal of Organizational and End User Computing Lead user Console user interface User environment management Atari ST User Principles of user interface design Concurrent user Web User Persona (user experience) Windows USER First-time user experience Multi-user MIMO Linux User and Developer History of the graphical user inter