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| Criterion |  UX Research Surveys |  Operations Change Analysis |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|---|
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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 3-14 Tage | 45-120 min | 15-30 min | 1-4 h |
Participantsdifferent | 50+ | 2-6 | 2-6 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Survey Results, Charts, Segment Insights | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | QuantitativeResearchValidation | ChangeRoot causeTroubleshootingComparison | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |