View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Engineering Fault Isolation |  Decision Making Pre-Mortem |  Decision Making Constraint Analysis |  Engineering Failure Scenario Analysis |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 30-180 min | 20–45 min | 30-90 min | 1-3 h |
Participantsdifferent | 1-6 | Small cross-functional group | 2-8 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Risk list, Mitigation plan, Assumption log | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions |
Tagsno overlap | TroubleshootingDiagnosisEngineering | RiskDecisionFailurePlanning | ConstraintsDecisionPlanningOptions | FailureResilienceRisk |