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| Criterion |  Decision Making Delphi Method |  UX Research Card Sorting |  Growth A/B Testing |  Product Strategy Counter Metrics |
|---|---|---|---|---|
Purposedifferent | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | 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 | High | Low | High | Low |
Timedifferent | 1-4 Wochen | 20-45 min | 1-4 Wochen | 30-60 min |
Participantsdifferent | 6-30 Experten | Based on research question | 1-6 | 2-6 |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Content groups, Label set, IA hypotheses | Experiment results, Decision log, Learning summary | Counter Metric List, Guardrail Definitions |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Information architectureNavigationStructure | ExperimentsGrowthAnalyticsValidation | MetricsMeasurementStrategyExperiments |