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| Criterion |  Knowledge Modeling Feynman Technique |  Operations Barrier Analysis |  Systems Thinking Iceberg Model |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | The Feynman Technique checks understanding by explaining a topic so that it stays easy for others to understand. It makes knowledge gaps visible before they become costly in everyday work. | 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. | 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 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 | Low | Medium | Low | Low |
Timedifferent | 20-60 min | 2-4 h | 30-60 min | 15-30 min |
Participantsdifferent | 1 | 2-6 | 2-10 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Plain-language Explanation, Knowledge Gaps, Study Notes | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Root cause notes, Countermeasures |
Tagsno overlap | LearningKnowledgeUnderstanding | Root causeSafetyIncident | Systems thinkingRoot causePatterns | Root causeIncidentLeanProblem solving |