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| Criterion |  UX Research First-click Testing |  Innovation TRIZ |  Operations Root Cause Tree Analysis |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | Low | High | Medium | Medium |
Timedifferent | 1-2 Tage | 1-4 h | 1-3 h | 1-4 h |
Participantsdifferent | 10-30 | 2-8 | 2-8 | 3-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Contradiction Statement, Inventive Principles, Solution Concepts | Cause Tree, Evidence Notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | UXNavigationFindabilityValidation | InnovationProblem solvingContradictionsCreativity | Root causeTreeIncidentQuality | Root causeProblem solvingQualityIncident |