+**User Interaction** describes the dialogue between a human and a system. It encompasses every input and output, shaping how users perceive and operate [Digital Systems](/wiki/digital_systems). The ultimate aim is often seamless [User Experience](/wiki/user_experience).
+## See also
+- [Interface Design](/wiki/interface_design)
+- [Accessibility](/wiki/accessibility)
+- [Cognitive Psychology](/wiki/cognitive_psychology)
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