User User interface User profile User (computing) User identifier End user User innovation User-centered design Power user User-Agent header User story Graphical user interface Linux user group User experience 3D user interaction User interface design User research User-generated content Registered user User agent User experience design Multi-user software User advocacy User review Organic user interface User guide Users' group End-user development Voice user interface Macintosh User Group 10-foot user interface Tangible user interface User illusion User-mode Linux The Micro User Roaming user profile User fee Sinclair User Zooming user interface User Friendly Text-based user interface Single-user mode User assistance User informat…

tion User interface markup language User requirements document Intelligent user interface Fast user switching User interface management system Amstrad Computer User User space and kernel space Natural user interface IBM Common User Access Object-oriented user interface Closed user group Active users Adaptive user interface User error User model User Account Control User interface 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-subje

ctive 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 Concurrent user Multi-user MIMO Lead user User environment management Console user interface Windows USER Web User Persona (user experience) 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 user data Vector-based graphical user interface Questionnaire for User Interaction Satisfaction Browser user interface Average revenue per user