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| Criterion |  UX Research Diary Study |  Engineering Goal Question Metric |  Growth A/B Testing |  Product Strategy Counter Metrics |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | When a headline metric could mask side effects, it adds guardrail signals against unwanted outcomes. It connects customer value, product logic, and decision priorities. The result is captured as a counter-metric list and guardrail definitions. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 1-4 Wochen | 90-180 min | 1-4 Wochen | 30-60 min |
Participantsdifferent | 5-20 | 3-6 | 1-6 | 2-6 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | GQM Table, Metric Profiles | Experiment results, Decision log, Learning summary | Counter Metric List, Guardrail Definitions |
Tagsno overlap | UX researchTrackingBehavior | MetricsMeasurementEngineeringAlignment | ExperimentsGrowthAnalyticsValidation | MetricsMeasurementStrategyExperiments |