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| Criterion |  Operations Barrier Analysis |  Operations ALPEN Method |  Operations Time Blocking |  Operations 5 Whys |
|---|---|---|---|---|
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 a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 2-4 h | 10-20 min daily | 15-30 min Planung, laufend | 15-30 min |
Participantsdifferent | 2-6 | 1 | 1 | 2-6 |
Formatdifferent | Workshop + async | Async | Async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Daily Plan, Time Estimates, Review Notes | Blocked Calendar, Capacity View, Focus Plan | Root cause notes, Countermeasures |
Tagsno overlap | Root causeSafetyIncident | PlanningTime managementProductivityOperations | PlanningTime managementFocus | Root causeIncidentLeanProblem solving |