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| Criterion |  Operations Causal Factor Analysis |  Operations Barrier Analysis |  Product Discovery Smoke Test |
|---|---|---|---|
Purposedifferent | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. | When demand only needs to be roughly verified, it tests interest with minimal effort. It measures whether people would take a next step at all. |
Complexitydifferent | High | Medium | Low |
Timedifferent | 2-6 h | 2-4 h | 1-5 Tage |
Participantsdifferent | 3-10 | 2-6 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Interest Metrics, Conversion Signal, Learning Note |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | ValidationExperimentsDemandGrowth |
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