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e modeling Toolkits for user innovation End-user license agreement Acorn User Apple User Group Connection User intent User activity monitoring Z User Group Lazy user model Unique user User-subjective approach User–network interface Attentive user interface 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 Concurrent user Multi-user MIMO Lead user Persona (user experience) Console user interface Web User Windows USER Linux User and Developer First-time user experience Natural-language user interface History of the graphical user interface Multi-user dungeon End-user computing MPEG us