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| Criterion |  Operations Runbook |  Operations Failure Mode and Effects Analysis |  Operations ALPEN Method |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | 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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | 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. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 20-60 min | 2-6 h | 10-20 min daily | 2-6 h |
Participantsdifferent | 1-4 | 3-10 | 1 | 3-8 |
Formatdifferent | Async | Workshop | Async | Workshop + async |
Outputdifferent | Runbook, Checklist, Escalation Path | FMEA Table, Risk Priority, Mitigation Actions | Daily Plan, Time Estimates, Review Notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | OperationsReliabilityDocumentation | RiskQualityOperationsRoot cause | PlanningTime managementProductivityOperations | RiskRoot causeSafety |