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| Criterion |  Knowledge Modeling PARA Method |  Operations Fault Tree Analysis |  Operations 5 Whys |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | The PARA Method organizes knowledge into Projects, Areas, Resources, and Archives. It creates order when digital notes, files, and tasks no longer cleanly fit current work. | 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. | 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. | 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 | High | Low | Medium |
Timedifferent | 1-3 h Setup, laufend | 2-6 h | 15-30 min | 2-4 h |
Participantsdifferent | 1 | 3-8 | 2-6 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Root cause notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | KnowledgeProductivityOrganization | RiskRoot causeSafety | Root causeIncidentLeanProblem solving | Root causeSafetyIncident |