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| Criterion |  Agile WSJF |  Engineering Failure Scenario Analysis |  Operations 5 Whys |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When many tasks compete for the same capacity, it orders work by economic impact. It makes time lost, benefit, and effort comparable together. | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | 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 | High | Medium | Low | Medium |
Timedifferent | 45-90 min | 1-3 h | 15-30 min | 2-4 h |
Participantsdifferent | 3-10 | 3-8 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Ranked Backlog, Cost-of-Delay Assumptions | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | LeanEconomicsSequencePrioritization | FailureResilienceRisk | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |