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| Criterion |  Operations Fault Tree Analysis |  Operations Time Blocking |  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 a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | 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 | Low | Medium | Low |
Timedifferent | 2-6 h | 15-30 min Planung, 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 | Blocked Calendar, Capacity View, Focus Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | RiskRoot causeSafety | PlanningTime managementFocus | Root causeSafetyIncident | PlanningTime managementProductivityOperations |