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Selected:Fault Tree AnalysisSpecification by ExampleFailure Mode and Effects Analysis8D Problem Solving
| Criterion |  Operations Fault Tree Analysis |  Agile Specification by Example |  Operations Failure Mode and Effects Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Medium | High | High |
Timedifferent | 2-6 h | 60-90 min pro Feature | 2-6 h | 1-6 Wochen |
Participantsdifferent | 3-8 | 3-6 | 3-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Example Table, Acceptance Tests | FMEA Table, Risk Priority, Mitigation Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskRoot causeSafety | AgileRequirementsExamplesBehavior-Driven Development | RiskQualityOperationsRoot cause | QualityProblem solvingRoot cause |