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| Criterion |  Innovation Brainwriting |  Operations MORT Analysis |  Operations Root Cause Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Low | High | Medium | Medium |
Timedifferent | 15-30 min | Mehrere Tage bis Wochen | 1-4 h | 2-4 h |
Participantsdifferent | 3-12 | 2-6 | 3-8 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | Root causeSafetySystemicIncident | Root causeProblem solvingQualityIncident | Root causeSafetyIncident |