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| Criterion |  Operations Fault Tree Analysis |  Operations Getting Things Done |  Operations Barrier Analysis |  Operations ALPEN Method |
|---|---|---|---|---|
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. | With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory. | 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. | 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. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | 2-6 h | 1-2 h Setup, laufend | 2-4 h | 10-20 min daily |
Participantsdifferent | 3-8 | 1 | 2-6 | 1 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Action Lists, Project List, Review Routine | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | RiskRoot causeSafety | ProductivityPlanningTasksExecution | Root causeSafetyIncident | PlanningTime managementProductivityOperations |