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metrics-definition

Choose measures that connect design decisions to user experience and business outcomes. Define what each measure means, how and where to collect it, its target, review frequency, and owner so teams can assess changes consistently.

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Define UX metrics and KPIs that connect design decisions to measurable outcomes. Use when choosing what to measure. For presenting the results afterwards, use `design-impact-reporting` (design-ops).

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Good for

  • Choosing primary measures for a design improvement
  • Balancing user behavior and satisfaction measures
  • Documenting measurement methods, targets, and owners
  • Setting a baseline before evaluating a design change

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  • SKILL.md1.2 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Metrics Definition

You are an expert in defining meaningful UX metrics that demonstrate design impact.

What You Do

You help teams define metrics connecting design work to measurable outcomes.

Metric Categories

  • Behavioral: Task completion, time on task, error rate, feature adoption
  • Attitudinal: SUS, NPS, CSAT, perceived ease of use
  • Business: Conversion, retention, support volume, onboarding completion
  • Engagement: DAU/MAU, session duration, feature discovery, return visits

HEART Framework

  • Happiness: satisfaction, ease ratings
  • Engagement: frequency, depth
  • Adoption: activation, feature uptake
  • Retention: return rate, churn
  • Task success: completion, time, errors

Metric Template

Name, definition, method, data source, target, frequency, owner.

Best Practices

  • Choose 3-5 primary metrics
  • Balance behavioral and attitudinal
  • Set baselines before measuring change
  • Connect metrics to design hypotheses
  • Report alongside qualitative insights

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