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| Criterion |  Engineering Failure Scenario Analysis |  Operations Change Analysis |  Systems Thinking Evaporating Cloud |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 1-3 h | 45-120 min | 60-120 min | 2-6 h |
Participantsdifferent | 3-8 | 2-6 | 2-8 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | FailureResilienceRisk | ChangeRoot causeTroubleshootingComparison | Theory of ConstraintsAssumptionsSystems thinking | Systems thinkingRoot causeConstraintsCausality |