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| Criterion |  Knowledge Modeling PARA Method |  Operations 5 Whys |  Operations Change Analysis |  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 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 deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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 | Medium | Medium |
Timedifferent | 1-3 h Setup, laufend | 15-30 min | 45-120 min | 2-4 h |
Participantsdifferent | 1 | 2-6 | 2-6 | 2-6 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | PARA Structure, Project Notes, Knowledge Archive | Root cause notes, Countermeasures | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | KnowledgeProductivityOrganization | Root causeIncidentLeanProblem solving | ChangeRoot causeTroubleshootingComparison | Root causeSafetyIncident |