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| Criterion |  Operations Barrier Analysis |  Operations ALPEN Method |  Operations Time Blocking |  Operations Causal Factor Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Medium | Low | Low | High |
Timedifferent | 2-4 h | 10-20 min daily | 15-30 min Planung, laufend | 2-6 h |
Participantsdifferent | 2-6 | 1 | 1 | 3-10 |
Formatdifferent | Workshop + async | Async | Async | Workshop + async |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Daily Plan, Time Estimates, Review Notes | Blocked Calendar, Capacity View, Focus Plan | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | Root causeSafetyIncident | PlanningTime managementProductivityOperations | PlanningTime managementFocus | CausalityIncidentRoot causeTimeline |