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| Criterion | ![]() UX Research Surveys | ![]() Operations Kepner-Tregoe | ![]() Operations Root Cause Analysis | ![]() Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When a topic needs to be validated broadly and many people can answer the same question, surveys gather structured feedback in a scalable form. Answers become comparable and segmentable instead of remaining merely anecdotal. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 3-14 Tage | 2-8 h | 1-4 h | 15-30 min |
Participantsdifferent | 50+ | 2-8 | 3-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Survey Results, Charts, Segment Insights | Problem Analysis, Decision Analysis, Risk Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Root cause notes, Countermeasures |
Tagsno overlap | QuantitativeResearchValidation | Problem solvingRoot causeDecisionOperations | Root causeProblem solvingQualityIncident | Root causeIncidentLeanProblem solving |



