Interaction Design Principles

Summary

Designing how a user interacts with a product moment to moment — what happens on tap, hover, drag — grounded in giving clear, immediate feedback for every action a user takes.

• 1Audit an app for a moment where user action gets no visible feedback, and note the confusion it causes.
• 2Learn the core principle: every user action should produce a visible, immediate system response.
• 3Practice designing a button's full interaction states: default, hover, pressed, disabled.