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