Metrics For Designers

Design metrics, measuring design impact, key performance indicators, and analytics for design.

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Metrics for Designers

What to Measure

Usability Metrics

Metric How Good Signal
Task completion rate Analytics, testing >90%
Time on task Session recordings Decreasing over time
Error rate Form analytics <5% per field
Learnability First-use vs repeated-use comparison Converges quickly

Business Metrics Designers Influence

Metric Design Lever
Conversion rate Onboarding, CTA design, friction reduction
Retention Feature discovery, habit formation, value delivery
NPS/CSAT Overall experience quality
Support tickets Error prevention, clarity, self-service
Revenue per user Upgrade flow, pricing presentation

Design System Metrics

  • Component adoption rate
  • Custom override frequency
  • Time to build new features using system
  • Design consistency score (visual audit)

Anti-Metrics

  • Time on page (more isn't always better)
  • Page views (bouncing between pages isn't engagement)
  • Feature count (more features isn't more value)
  • Design system component count (more components isn't healthier)

dragoon0x/everything-design-taste/tree/main/skills/metrics-for-designers commit 7c8cd03d62

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