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| Criterion |  UX Research Tree Testing |  Product Strategy Lean Canvas |  Operations 5 Whys |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-2 Tage | 45-90 min | 15-30 min | 2-4 h |
Participantsdifferent | Based on research question | 1-6 | 2-6 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Lean Canvas, Core Assumptions, Experiment Backlog | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Information architectureNavigationFindability | StartupLeanAssumptionsBusiness model | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |