The Four Stages of a Micro-Interaction
Every micro-interaction consists of 4 parts: 1) Trigger (user tap or hover), 2) Rules (what determines the system response), 3) Feedback (visual animation or haptic cue confirming action), 4) Loops & Modes (what happens next). Designing all 4 stages prevents awkward, static interfaces.

Easing Curves & Duration Rules (200ms to 400ms)
Interface animations must be snappy and purposeful. Micro-interactions should last between 150ms and 350ms with natural ease-out or spring curves. Any animation longer than 400ms makes users feel the software is lagging.

Skeleton Screens vs. Spinner Loaders: Perceived Speed Math
Replacing generic spinning loaders with progressive pulsating skeleton screens reduces perceived load time by over 30%, keeping users engaged while data fetches in the background.





