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| Criterion |  Operations Family Tree Analysis |  Operations ALPEN Method |  Systems Thinking Iceberg Model |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 2-4 h | 10-20 min daily | 30-60 min | 2-4 h |
Participantsdifferent | 2-6 | 1 | 2-10 | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Family Tree Diagram, Pattern Notes, Systemic Measures | Daily Plan, Time Estimates, Review Notes | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Root causePatternsIncidentSystemic | PlanningTime managementProductivityOperations | Systems thinkingRoot causePatterns | Root causeSafetyIncident |