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| Criterion |  Operations Fault Tree Analysis |  Innovation Brainwriting |  Operations Barrier Analysis |  DevOps ChatOps |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 2-6 h | 15-30 min | 2-4 h | Ongoing |
Participantsdifferent | 3-8 | 3-12 | 2-6 | 2-20 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Idea sheets, Expanded concepts, Prioritized list | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Chat Transcript, Action Log, Automations |
Tagsno overlap | RiskRoot causeSafety | BrainstormingCollaborationInclusionIdeas | Root causeSafetyIncident | CollaborationEngineeringIncident |